RFR: 8359154: Intermittent system test failures on macOS [v2]

[Ambarish Rapte]

> Issue: 
> On MacOS, several tests fail intermittently.
> 
> Fix: 
> - The test TableViewContextMenuSortTest.testContextMenuRequestDoesNotSort() performs a Ctrl + Click test only on MacOS platform.
> - If the Ctrl + Click is avoided, then the test failures are not observed.
> - So this change comments out the part of the test in question.
> - A follow-up ticket is created to investigate/update the test [JDK-8367566](https://bugs.openjdk.org/browse/JDK-8367566)
> 
> Verification:
> 1. Verified the headful test with full run, 12 times. The issue does not occur.
> Without this change, the tests do fail more often.
> 2. @beldenfox shared a way to reproduce the failures, in a comment in JBS ticket : [JDK-8359154](https://bugs.openjdk.org/browse/JDK-8359154)**:** If these 5 tests are run repeatedly TableViewClickOnTroughTest, TableViewContextMenuSortTest, TableViewResizeColumnToFitContentTest, TreeTableViewChangeRootTest, and TreeTableViewResizeColumnToFitContentTest, then the issue could occur in 'n' iterations < 120. 
> With this change, no test failure is observed. Several times, tested 120 iterations.

Ambarish Rapte has updated the pull request incrementally with one additional commit since the last revision:

  update comment

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

Changes:
  - all: https://git.openjdk.org/jfx/pull/1899/files
  - new: https://git.openjdk.org/jfx/pull/1899/files/052cb57e..18f73a90

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1899&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1899&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jfx/pull/1899.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1899/head:pull/1899

PR: https://git.openjdk.org/jfx/pull/1899