RFR: 8376047: [lworld] Remove javac special treatment of @Strict

[Chen Liang]

PR 5, the final, in the series of strict removal. PR 4 is #1960.

Remove the `jdk.internal.vm.annotation.Strict` annotation, and some javac flags now obsolete due to the removal.

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

Depends on: https://git.openjdk.org/valhalla/pull/1960

Commit messages:
 - Remove strict

Changes: https://git.openjdk.org/valhalla/pull/1961/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1961&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8376047
  Stats: 77 lines in 10 files changed: 0 ins; 64 del; 13 mod
  Patch: https://git.openjdk.org/valhalla/pull/1961.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1961/head:pull/1961

PR: https://git.openjdk.org/valhalla/pull/1961