RFR: 8345223: Remove doPrivileged in java.base/unix/classes/sun/net and java.base/macosx/classes/java/net classes after JEP 486 integration [v2]

[Daniel Fuchs]

> Some doPrivileged were missed in some net classes when working on previous cleanups.

Daniel Fuchs has updated the pull request incrementally with one additional commit since the last revision:

  Update Copyright Years

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22447/files
  - new: https://git.openjdk.org/jdk/pull/22447/files/bd74dd79..d2b262c7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22447&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22447&range=00-01

  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/22447.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22447/head:pull/22447

PR: https://git.openjdk.org/jdk/pull/22447