RFR: 8238435: [macOs] Remove use of CGEventTap

[Martin Fox]

The GlassTouches code for monitoring touch events was disabled years ago because it uses a global event tap. As Apple tightened security this started generating alerts. With the latest version of Xcode (16.3) this unused code is triggering a build error. This PR removes GlassTouches entirely.

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Commit messages:
 - Removed unused GlassTouches class

Changes: https://git.openjdk.org/jfx/pull/1812/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1812&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8238435
  Stats: 508 lines in 6 files changed: 0 ins; 508 del; 0 mod
  Patch: https://git.openjdk.org/jfx/pull/1812.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1812/head:pull/1812

PR: https://git.openjdk.org/jfx/pull/1812