RFR: 8345502: Remove doIntersectionPrivilege methods [v3]

[Sean Mullan]

> The internal `ProtectionDomain.doIntersectionPrivilege` methods can be removed as all dependencies have been removed in post JEP 486 cleanup issues.

Sean Mullan has updated the pull request incrementally with one additional commit since the last revision:

  Add # to linkplain link.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22548/files
  - new: https://git.openjdk.org/jdk/pull/22548/files/47e2bde4..f9204f9a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22548&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22548&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22548.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22548/head:pull/22548

PR: https://git.openjdk.org/jdk/pull/22548