Merge #12182: Remove useless string initializations
Summary:
19ac86e Remove useless string initialization. (Alin Rus)
Pull request description:
Tree-SHA512: 4273dd7e8ed083cc9d05fc70967465e405085b630c000f829648dd44dd0cfe2249f6af1498b02f54b4ca73833130b802488bae8eca0d4d0b803a6f0122b19e8f
Backport of Core PR12182
https://github.com/bitcoin/bitcoin/pull/12182/
Test Plan:
make check test_runner.py
Reviewers: jasonbcox, deadalnix, Fabien, markblundeberg, O1 Bitcoin ABC, #bitcoin_abc
Reviewed By: Fabien, O1 Bitcoin ABC, #bitcoin_abc
Differential Revision: https://reviews.bitcoinabc.org/D3066