RFR: 8344177: Remove SecurityManager and related calls from java.management [v10]

[Kevin Walls]

> Remove redundant SecurityManager, AccessController references
> (following on from JDK-8338411: Implement JEP 486: Permanently Disable the Security Manager).

Kevin Walls has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 18 commits:

 - Merge
 - Merge remote-tracking branch 'upstream/master' into java_management_post_sm
 - Exception handling
 - tidyup
 - Suppression tidyup
 - unnecessary variables
 - remove redundant method
 - Merge remote-tracking branch 'upstream/master' into java_management_post_sm
 - ReflectUtil removals
 - Remove checkPackageAccess calls
 - ... and 8 more: https://git.openjdk.org/jdk/compare/994504c3...1437532f

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Changes: https://git.openjdk.org/jdk/pull/22100/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22100&range=09
  Stats: 1573 lines in 64 files changed: 10 ins; 1360 del; 203 mod
  Patch: https://git.openjdk.org/jdk/pull/22100.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22100/head:pull/22100

PR: https://git.openjdk.org/jdk/pull/22100