Remove oversized message detection from log and interface

Summary:
Partial backport 5/7 of core PR16202:
https://github.com/bitcoin/bitcoin/pull/16202/commits/6a91499496d76c2b3e84489e9723b60514fb08db

Depends on D8225.

Test Plan:

ninja all check-all

Reviewers: #bitcoin_abc, PiRK, jasonbcox

Reviewed By: #bitcoin_abc, PiRK, jasonbcox

Subscribers: jasonbcox

Differential Revision: https://reviews.bitcoinabc.org/D8226