RFR: 8376047: [lworld] Remove javac special treatment of @Strict [v2]

[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.

Chen Liang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'test/plain-strict' into fix/remove-strict-javac
 - Remove strict

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/1961/files
  - new: https://git.openjdk.org/valhalla/pull/1961/files/89861dd2..4e3b15a8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1961&range=01
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1961&range=00-01

  Stats: 1852 lines in 68 files changed: 1314 ins; 258 del; 280 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