RFR: 8257670: sun/security/ssl/SSLSocketImpl/SSLSocketLeak.java reports leaks

[Xue-Lei Andrew Fan]

This test case, sun/security/ssl/SSLSocketImpl/SSLSocketLeak.java, may be not reliable if there are some other test cases or applications running at the same time.  It's a good manual test, but might be not suitable for OpenJDK automation regression test if it could be impacted.  Move it to manual test.

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Commit messages:
 - 8257670: sun/security/ssl/SSLSocketImpl/SSLSocketLeak.java reports leaks

Changes: https://git.openjdk.java.net/jdk/pull/1681/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1681&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8257670
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1681.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1681/head:pull/1681

PR: https://git.openjdk.java.net/jdk/pull/1681