RFR: 8354811: clock_tics_per_sec code duplication between os_linux and os_posix

[Matthias Baesken]

Seems some of the clock_tics_per_sec code can be unified (e.g. in os_posix) between os_linux and os_posix.

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

Commit messages:
 - remove empty line
 - JDK-8354811

Changes: https://git.openjdk.org/jdk/pull/24720/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24720&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354811
  Stats: 15 lines in 3 files changed: 8 ins; 4 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/24720.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24720/head:pull/24720

PR: https://git.openjdk.org/jdk/pull/24720