RFR: 8316445: Mark com/sun/management/HotSpotDiagnosticMXBean/CheckOrigin.java as vm.flagless

[Leonid Mesnik]

Test
com/sun/management/HotSpotDiagnosticMXBean/CheckOrigin.java
check how beans work with VM flags and ignore external flags.
It doesn't make sense to run it with external options so just mark it as flagless.
Tested with running tier1 and test with/without additional options.

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Commit messages:
 - fix

Changes: https://git.openjdk.org/jdk/pull/15823/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15823&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8316445
  Stats: 3 lines in 2 files changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/15823.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15823/head:pull/15823

PR: https://git.openjdk.org/jdk/pull/15823