RFR: 8334305: Remove all code for nsk.share.Log verbose mode [v2]

[Ramkumar Sunderbabu]

> Cleaning up nsk.share.Log code after the verbose mode was set always true.
> 
> Tested all the vmTestbase/ tests.

Ramkumar Sunderbabu has updated the pull request incrementally with one additional commit since the last revision:

  Addressed review comments

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/21267/files
  - new: https://git.openjdk.org/jdk/pull/21267/files/a346de1c..097789b2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21267&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21267&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/21267.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21267/head:pull/21267

PR: https://git.openjdk.org/jdk/pull/21267