RFR: 8344059: Remove doPrivileged calls from windows platform sources in the java.desktop module

[Prasanta Sadhukhan]

Since JEP 486 : Permanently Disable the Security Manager
[https://bugs.openjdk.org/browse/JDK-8338625] is now integrated, calls to java.security.AccessController.doPrivileged are obsolete and can be removed. 

This PR takes care of the windows-platform files in the java.desktop module to have them removed.

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Commit messages:
 - remove unneeded file
 - remove unneeded file
 - 8344059: Remove doPrivileged calls from windows platform sources in the java.desktop module
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - 8343123: Nimbus: javax/swing/JInternalFrame/bug6726866.java does not have green undecorated window

Changes: https://git.openjdk.org/jdk/pull/22083/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22083&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8344059
  Stats: 362 lines in 17 files changed: 26 ins; 175 del; 161 mod
  Patch: https://git.openjdk.org/jdk/pull/22083.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22083/head:pull/22083

PR: https://git.openjdk.org/jdk/pull/22083