RFR: 8306014: Update javax.net.ssl TLS tests to use SSLContextTemplate or SSLEngineTemplate

[Matthew Donovan]

I refactored tests in the test/jdk/javax/net/ssl directories to use the test template classes.

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Commit messages:
 - 8306014: Update javax.net.ssl TLS tests to use SSLContextTemplate or SSLEngineTemplate

Changes: https://git.openjdk.org/jdk/pull/13494/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13494&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306014
  Stats: 1002 lines in 6 files changed: 266 ins; 693 del; 43 mod
  Patch: https://git.openjdk.org/jdk/pull/13494.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13494/head:pull/13494

PR: https://git.openjdk.org/jdk/pull/13494