[jdk17u-dev] RFR: 8334305: Remove all code for nsk.share.Log verbose mode

[Goetz Lindenmaier]

I backport this for parity with 17.0.15-oracle.

Resolved Log.java. Some code adaptions and additional changes needed to make it work.

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Commit messages:
 - Backport 855c8a7def21025bc2fc47594f7285a55924c213

Changes: https://git.openjdk.org/jdk17u-dev/pull/3231/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3231&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8334305
  Stats: 123 lines in 13 files changed: 0 ins; 92 del; 31 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3231.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3231/head:pull/3231

PR: https://git.openjdk.org/jdk17u-dev/pull/3231