diff --git a/danger/gitlab_schema_validation/Dangerfile b/danger/gitlab_schema_validation/Dangerfile
deleted file mode 100644
index 3d44ad592ae8722e15a76beb29929eeceda4f4e7..0000000000000000000000000000000000000000
--- a/danger/gitlab_schema_validation/Dangerfile
+++ /dev/null
@@ -1,3 +0,0 @@
-# frozen_string_literal: true
-
-gitlab_schema_validation.add_suggestions_on_using_clusterwide_schema
diff --git a/danger/plugins/gitlab_schema_validation.rb b/danger/plugins/gitlab_schema_validation.rb
deleted file mode 100644
index ca4bc1a12be365648adb696683c595618e69aa35..0000000000000000000000000000000000000000
--- a/danger/plugins/gitlab_schema_validation.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# frozen_string_literal: true
-
-require_relative '../../tooling/danger/gitlab_schema_validation_suggestion'
-
-module Danger
-  class GitlabSchemaValidation < ::Danger::Plugin
-    include Tooling::Danger::GitlabSchemaValidationSuggestion
-  end
-end
diff --git a/lib/gitlab/database/gitlab_schema.rb b/lib/gitlab/database/gitlab_schema.rb
index 52fb75a4a570ca28e0bbaf960d1fbf6d89c7de4f..de993b78c79321489153a06412eaf1b756553aef 100644
--- a/lib/gitlab/database/gitlab_schema.rb
+++ b/lib/gitlab/database/gitlab_schema.rb
@@ -27,7 +27,6 @@ def self.table_schemas!(tables)
       # It maps table names prefixes to gitlab_schemas.
       # The order of keys matter. Prefixes that contain other prefixes should come first.
       IMPLICIT_GITLAB_SCHEMAS = {
-        '_test_gitlab_main_clusterwide_' => :gitlab_main_clusterwide,
         '_test_gitlab_main_cell_' => :gitlab_main_cell,
         '_test_gitlab_main_org_' => :gitlab_main_org,
         '_test_gitlab_main_' => :gitlab_main,
diff --git a/lib/gitlab/database/query_analyzers/restrict_allowed_schemas.rb b/lib/gitlab/database/query_analyzers/restrict_allowed_schemas.rb
index 9ec48c8ca07fa568bf32dfb90ebcd0cdb42c26ac..820b536858e9f96407ee08de7fdede8bc1106c4c 100644
--- a/lib/gitlab/database/query_analyzers/restrict_allowed_schemas.rb
+++ b/lib/gitlab/database/query_analyzers/restrict_allowed_schemas.rb
@@ -19,7 +19,6 @@ class RestrictAllowedSchemas < Base
           gitlab_internal: nil,
 
           # Cells specific changes
-          gitlab_main_clusterwide: :gitlab_main,
           gitlab_main_cell: :gitlab_main,
           gitlab_main_org: :gitlab_main,
           gitlab_main_cell_local: :gitlab_main,
diff --git a/spec/lib/gitlab/database/gitlab_schema_spec.rb b/spec/lib/gitlab/database/gitlab_schema_spec.rb
index 8899d7ec0b8f148875a44f7b281d2305462b9cc8..d35416071a3df14d6725b7212302c071c4470cf7 100644
--- a/spec/lib/gitlab/database/gitlab_schema_spec.rb
+++ b/spec/lib/gitlab/database/gitlab_schema_spec.rb
@@ -38,7 +38,6 @@
       'audit_events_part_5fc467ac26'                 | :gitlab_main
       '_test_gitlab_main_table'                      | :gitlab_main
       '_test_gitlab_ci_table'                        | :gitlab_ci
-      '_test_gitlab_main_clusterwide_table'          | :gitlab_main_clusterwide
       '_test_gitlab_main_cell_table'                 | :gitlab_main_cell
       '_test_gitlab_main_org_table'                  | :gitlab_main_org
       '_test_gitlab_pm_table'                        | :gitlab_pm
diff --git a/spec/lib/gitlab/database/query_analyzers/restrict_allowed_schemas_spec.rb b/spec/lib/gitlab/database/query_analyzers/restrict_allowed_schemas_spec.rb
index 59a6ce663f5fa5a61effbd7cd4c8c2e192e9c5c0..14006905d94d8e6f3c278eb7539a830c66dd5fad 100644
--- a/spec/lib/gitlab/database/query_analyzers/restrict_allowed_schemas_spec.rb
+++ b/spec/lib/gitlab/database/query_analyzers/restrict_allowed_schemas_spec.rb
@@ -16,7 +16,6 @@
           expected_allowed_gitlab_schemas: {
             no_schema: :dml_not_allowed,
             gitlab_main: :success,
-            gitlab_main_clusterwide: :success,
             gitlab_main_cell: :success,
             gitlab_main_org: :success,
             gitlab_ci: :dml_access_denied # cross-schema access
@@ -27,7 +26,6 @@
           expected_allowed_gitlab_schemas: {
             no_schema: :dml_not_allowed,
             gitlab_main: :success,
-            gitlab_main_clusterwide: :success,
             gitlab_main_cell: :success,
             gitlab_main_org: :success,
             gitlab_ci: :dml_access_denied # cross-schema access
@@ -38,7 +36,6 @@
           expected_allowed_gitlab_schemas: {
             no_schema: :dml_not_allowed,
             gitlab_main: :success,
-            gitlab_main_clusterwide: :success,
             gitlab_main_cell: :success,
             gitlab_main_org: :success,
             gitlab_ci: :dml_access_denied # cross-schema access
@@ -49,7 +46,6 @@
           expected_allowed_gitlab_schemas: {
             no_schema: :dml_not_allowed,
             gitlab_main: :success,
-            gitlab_main_clusterwide: :success,
             gitlab_main_cell: :success,
             gitlab_main_org: :success,
             gitlab_ci: :dml_access_denied # cross-schema access
diff --git a/spec/tooling/danger/gitlab_schema_validation_suggestion_spec.rb b/spec/tooling/danger/gitlab_schema_validation_suggestion_spec.rb
deleted file mode 100644
index 759188176b43d01c669494cc17e17431d5ee185f..0000000000000000000000000000000000000000
--- a/spec/tooling/danger/gitlab_schema_validation_suggestion_spec.rb
+++ /dev/null
@@ -1,108 +0,0 @@
-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-require 'gitlab/dangerfiles/spec_helper'
-
-require_relative '../../../tooling/danger/gitlab_schema_validation_suggestion'
-require_relative '../../../tooling/danger/project_helper'
-
-RSpec.describe Tooling::Danger::GitlabSchemaValidationSuggestion, feature_category: :cell do
-  include_context "with dangerfile"
-
-  let(:fake_danger) { DangerSpecHelper.fake_danger.include(described_class) }
-  let(:fake_project_helper) { instance_double(Tooling::Danger::ProjectHelper) }
-  let(:filename) { 'db/docs/application_settings.yml' }
-  let(:file_lines) do
-    file_diff.map { |line| line.delete_prefix('+') }
-  end
-
-  let(:file_diff) do
-    [
-      "+---",
-      "+table_name: application_settings",
-      "+classes:",
-      "+- ApplicationSetting",
-      "+feature_categories:",
-      "+- continuous_integration",
-      "+description: GitLab application settings",
-      "+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/commit/8589b4e137f50293952923bb07e2814257d7784d",
-      "+milestone: '7.7'",
-      "+gitlab_schema: #{schema}"
-    ]
-  end
-
-  subject(:gitlab_schema_validation) { fake_danger.new(helper: fake_helper) }
-
-  before do
-    allow(gitlab_schema_validation).to receive(:project_helper).and_return(fake_project_helper)
-    allow(gitlab_schema_validation.project_helper).to receive(:file_lines).and_return(file_lines)
-    allow(gitlab_schema_validation.helper).to receive(:changed_lines).with(filename).and_return(file_diff)
-    allow(gitlab_schema_validation.helper).to receive(:all_changed_files).and_return([filename])
-  end
-
-  shared_examples_for 'does not add a comment' do
-    it do
-      expect(gitlab_schema_validation).not_to receive(:markdown)
-
-      gitlab_schema_validation.add_suggestions_on_using_clusterwide_schema
-    end
-  end
-
-  context 'for discouraging the use of gitlab_main_clusterwide schema' do
-    let(:schema) { 'gitlab_main_clusterwide' }
-
-    context 'when the file path matches' do
-      it 'adds the comment' do
-        expected_comment = "\n#{described_class::SUGGESTION.chomp}"
-
-        expect(gitlab_schema_validation).to receive(:markdown).with(expected_comment, file: filename, line: 10)
-
-        gitlab_schema_validation.add_suggestions_on_using_clusterwide_schema
-      end
-    end
-
-    context 'when the file path does not match' do
-      let(:filename) { 'some_path/application_settings.yml' }
-
-      it_behaves_like 'does not add a comment'
-    end
-
-    context 'for EE' do
-      let(:filename) { 'ee/db/docs/application_settings.yml' }
-
-      it_behaves_like 'does not add a comment'
-    end
-
-    context 'for a deleted table' do
-      let(:filename) { 'db/docs/deleted_tables/application_settings.yml' }
-
-      it_behaves_like 'does not add a comment'
-    end
-  end
-
-  context 'on removing the gitlab_main_clusterwide schema' do
-    let(:file_diff) do
-      [
-        "+---",
-        "+table_name: application_settings",
-        "+classes:",
-        "+- ApplicationSetting",
-        "+feature_categories:",
-        "+- continuous_integration",
-        "+description: GitLab application settings",
-        "+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/commit/8589b4e137f50293952923bb07e2814257d7784d",
-        "+milestone: '7.7'",
-        "-gitlab_schema: gitlab_main_clusterwide",
-        "+gitlab_schema: gitlab_main_org"
-      ]
-    end
-
-    it_behaves_like 'does not add a comment'
-  end
-
-  context 'when a different schema is added' do
-    let(:schema) { 'gitlab_main' }
-
-    it_behaves_like 'does not add a comment'
-  end
-end
diff --git a/tooling/danger/gitlab_schema_validation_suggestion.rb b/tooling/danger/gitlab_schema_validation_suggestion.rb
deleted file mode 100644
index 0806bc51fb3c0af357b7d5443b6a76b57dc4eef1..0000000000000000000000000000000000000000
--- a/tooling/danger/gitlab_schema_validation_suggestion.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# frozen_string_literal: true
-
-require_relative 'suggestion'
-
-module Tooling
-  module Danger
-    module GitlabSchemaValidationSuggestion
-      include ::Tooling::Danger::Suggestor
-
-      MATCH = %r{gitlab_schema: gitlab_main_clusterwide}
-      REPLACEMENT = nil
-      DB_DOCS_PATH = %r{\Adb/docs/[^/]+\.ya?ml\z}
-
-      SUGGESTION = <<~MESSAGE_MARKDOWN
-        :warning: You have added `gitlab_main_clusterwide` (deprecated) as the schema for this table. We expect most tables to use the
-        `gitlab_main_org` schema instead.
-
-        Please see the [guidelines on choosing gitlab schema](https://docs.gitlab.com/ee/development/cells/#what-schema-to-choose-if-the-feature-can-be-cluster-wide) for more information.
-
-        Please consult with `@gitlab-com/gl-infra/tenant-scale/cells-infrastructure` if you believe that the clusterwide schema is the best fit for this table.
-      MESSAGE_MARKDOWN
-
-      def add_suggestions_on_using_clusterwide_schema
-        helper.all_changed_files.grep(DB_DOCS_PATH).each do |filename|
-          add_suggestion(
-            filename: filename,
-            regex: MATCH,
-            replacement: REPLACEMENT,
-            comment_text: SUGGESTION
-          )
-        end
-      end
-    end
-  end
-end