[crac] RFR: Simplify CPUFeatures code

Sat Sep 16 15:48:37 UTC 2023

There is no functionality change. I guess the new code should be more simple and shorter. It was originally suggested by @AntonKozlov to use more functions than macros.

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

Commit messages:
 - Rename excessive/i to shouldnotuse/i
 - Simplify CPUFeatures code

Changes: https://git.openjdk.org/crac/pull/112/files
 Webrev: https://webrevs.openjdk.org/?repo=crac&pr=112&range=00
  Stats: 118 lines in 1 file changed: 24 ins; 62 del; 32 mod
  Patch: https://git.openjdk.org/crac/pull/112.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/112/head:pull/112

PR: https://git.openjdk.org/crac/pull/112