RFR: 8341191: Open source few more AWT FileDialog tests [v2]

[Abhishek Kumar]

> AWT File Dialog related tests are converted from applet to manual and moved to open.

Abhishek Kumar has updated the pull request incrementally with one additional commit since the last revision:

  spacing and removed unused code

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21277/files
  - new: https://git.openjdk.org/jdk/pull/21277/files/872bae22..f0c03f5e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21277&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21277&range=00-01

  Stats: 9 lines in 2 files changed: 0 ins; 8 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/21277.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21277/head:pull/21277

PR: https://git.openjdk.org/jdk/pull/21277