RFR: 8348575: SpinLockT is typedef'ed but unused [v2]

[Hamlin Li]

> Hi,
> Can you help to review this simple patch?
> 
> SpinLockT is typedef'ed, but there is no usage of it. I think this is a legacy code from long time before. Also remove/modify some related comment.
> 
> Thanks

Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:

  minor

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/23298/files
  - new: https://git.openjdk.org/jdk/pull/23298/files/46682ab2..0ae21541

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23298&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23298&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23298.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23298/head:pull/23298

PR: https://git.openjdk.org/jdk/pull/23298