[jdk21u-dev] RFR: 8342602: Remove JButton/PressedButtonRightClickTest test

[Goetz Lindenmaier]

I backport this for parity with 21.0.7-oracle,

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Commit messages:
 - Backport 8647c00114385f74939bf705c9c07e709f41a18d

Changes: https://git.openjdk.org/jdk21u-dev/pull/1279/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1279&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342602
  Stats: 148 lines in 2 files changed: 0 ins; 147 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1279.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1279/head:pull/1279

PR: https://git.openjdk.org/jdk21u-dev/pull/1279