RFR: 8328121: Remove applet usage from JColorChooser tests Test4759306 [v4]

[Alisen Chung]

> Removing applet usage from manual JColorChooser tests

Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:

  update instructions string, remove extra frame

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18286/files
  - new: https://git.openjdk.org/jdk/pull/18286/files/5b1d20e6..464822ca

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18286&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18286&range=02-03

  Stats: 7 lines in 1 file changed: 0 ins; 3 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/18286.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18286/head:pull/18286

PR: https://git.openjdk.org/jdk/pull/18286