[jdk21u-dev] RFR: 8328121: Remove applet usage from JColorChooser tests Test4759306

[Goetz Lindenmaier]

I backport this for parity with 21.0.7-oracle

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Commit messages:
 - Backport fab0edc9e636c69d7012e476e97661ddae993a03

Changes: https://git.openjdk.org/jdk21u-dev/pull/1232/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1232&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328121
  Stats: 54 lines in 2 files changed: 14 ins; 33 del; 7 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1232.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1232/head:pull/1232

PR: https://git.openjdk.org/jdk21u-dev/pull/1232