SCORU/Node: don't store hash->level association on disk
Context
This MR removes a table in the store of the rollup node and uses caches for data available on layer 1.
We still keep an association level -> hash in the rollup node to be able to compute dissections even if the tezos node is not in archive mode.
Depends on !7122 (merged).
Manually testing the MR
Refactoring only.
TODO
-
backport to Mumbai/016 rollup node
Edited by Alain Mebsout