Move MakeNoLogFileContext to common libtest_util, and use it in bench
Summary:
Can be reviewed with --color-moved=dimmed-zebra
This is a backport of core#21003
Depends on D15308
Test Plan: ninja check bitcoin-fuzzers bench-bitcoin
Reviewers: #bitcoin_abc, Fabien
Reviewed By: #bitcoin_abc, Fabien
Subscribers: Fabien
Differential Revision: https://reviews.bitcoinabc.org/D15309