RFR: 8259066: Obsolete -XX:+AlwaysLockClassLoader

[Coleen Phillimore]

Trivial change to obsolete a deprecated option.
Tested with tier1-3 (in progress) but no tests use this option.

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Commit messages:
 - 8259066: Obsolete -XX:+AlwaysLockClassLoader

Changes: https://git.openjdk.java.net/jdk/pull/4511/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4511&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8259066
  Stats: 6 lines in 2 files changed: 0 ins; 6 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4511.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4511/head:pull/4511

PR: https://git.openjdk.java.net/jdk/pull/4511