Merge #15999: init: Remove dead code in LoadChainTip
Summary:
fa86c8aec6 init: Remove dead code in LoadChainTip (MarcoFalke)
Pull request description:
`LoadChainTip` sets `::ChainActive()` based on `pcoinsTip`'s best block. `LoadChainTip` is never called when that block is null, so we can remove all code from within that method that is only executed when that block is null. Fixes #15967 Inconsistent locking behavior in LoadChainTip
ACKs for commit fa86c8:
promag: utACK fa86c8aec611a9b9d2f53960c92419cf2a8bb92d. practicalswift: utACK fa86c8aec611a9b9d2f53960c92419cf2a8bb92d Empact: utACK https://github.com/bitcoin/bitcoin/pull/15999/commits/fa86c8aec611a9b9d2f53960c92419cf2a8bb92d laanwj: utACK fa86c8aec611a9b9d2f53960c92419cf2a8bb92d ryanofsky: utACK fa86c8aec611a9b9d2f53960c92419cf2a8bb92d. LoadChainTip isn't called currently when pcoinsTip best block is null due to this line: jamesob: utACK https://github.com/bitcoin/bitcoin/pull/15999/commits/fa86c8aec611a9b9d2f53960c92419cf2a8bb92d
Tree-SHA512: 8961c0e579800a52038ac5655478468852faac055299b64d6cfdf0c213d3bf09669c4889467d09d93457f6c8b073967bb0475a137f77ddd3a3a3c03ad90001c4
Backport of Core PR15999
Our only call for LoadChainTip() is here and requires pcoinsTip to not be null.
Test Plan:
ninja ninja check-all
Reviewers: O1 Bitcoin ABC, #bitcoin_abc, Fabien, deadalnix
Reviewed By: O1 Bitcoin ABC, #bitcoin_abc, Fabien, deadalnix
Subscribers: Fabien, deadalnix
Differential Revision: https://reviews.bitcoinabc.org/D6631