validation: Pass in chainstate to CTxMemPool::removeForReorg

Summary:
Several other parameters are now redundant since they can be safely
obtained from the chainstate given that ::cs_main is locked. These are
now removed.

This is a backport of core#20750 [15/17]
https://github.com/bitcoin/bitcoin/pull/20750/commits/714201881251a787423fbca34f70fed505e9dc28

Depends on D11201

Test Plan: ninja all check-all

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Differential Revision: https://reviews.bitcoinabc.org/D11202