Remove no_pagination option support from Blame view
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It's a follow-up for !119752 (merged)
Description
Blame page for files with many lines can take a while to load.
As the first optimization, we added a pagination for it. But it was not convenient for everybody to use.
The next step was to add a Show full blame button that showed the blame view without pagination. It provided an option no_pagination=true.
Finally, we added a streaming mode that replaces no_pagination step completely.
Blame streaming was fully enabled in Remove Blame page streaming feature flag (!119752 - merged).
Proposal
The code for no_pagination support should be deprecated, because no UI controls define it anymore. It should be safe to remove it.
Related code: https://gitlab.com/gitlab-org/gitlab/blob/81f86be30e01994e01361e400deff5d06a5328de/lib/gitlab/git/blame_mode.rb#L23