[refactor] Drop redundant nDoS, corruptionPossible, SetCorruptionPossible

Summary:
Co-authored-by: Anthony Towns <aj@erisian.com.au>

This is a partial backport of Core PR15141 : https://github.com/bitcoin/bitcoin/pull/15141/commits/c8b0d22698385f91215ce8145631e3d5826dc977

Depends on D6698

Test Plan:

ninja all check-all

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Differential Revision: https://reviews.bitcoinabc.org/D6699