Removes `SecurityManager` et al. from `SocksSocketImpl`. `tier2` tests have passed – CI run link is available in the ticket.
------------- Commit messages: - 8344219: Remove `SM` et al. from `SocksSocketImpl` Changes: https://git.openjdk.org/jdk/pull/22271/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22271&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8344219 Stats: 61 lines in 1 file changed: 0 ins; 53 del; 8 mod Patch: https://git.openjdk.org/jdk/pull/22271.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22271/head:pull/22271 PR: https://git.openjdk.org/jdk/pull/22271
