<i18n dev> RFR: 8344061: Remove doPrivileged calls from shared implementation code in the java.desktop module : part 2

[Phil Race]

Update 21 desktop module shared implementation files to remove doPrivileged.
All the usual tests still pass.

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Commit messages:
 - 8344061

Changes: https://git.openjdk.org/jdk/pull/22161/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22161&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8344061
  Stats: 1045 lines in 21 files changed: 136 ins; 520 del; 389 mod
  Patch: https://git.openjdk.org/jdk/pull/22161.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22161/head:pull/22161

PR: https://git.openjdk.org/jdk/pull/22161