[jdk17u-dev] RFR: 8328648: Remove applet usage from JFileChooser tests bug4150029

[Goetz Lindenmaier]

I backport this for parity with 17.0.16-oracle

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Commit messages:
 - Backport 021ed6aea92f770ebeae65175d94797f7c418c82

Changes: https://git.openjdk.org/jdk17u-dev/pull/3345/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3345&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328648
  Stats: 150 lines in 2 files changed: 55 ins; 54 del; 41 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3345.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3345/head:pull/3345

PR: https://git.openjdk.org/jdk17u-dev/pull/3345