pgsql: Remove bogus tracepoint

Remove bogus tracepoint

Calls to LWLockWaitForVar() fired the TRACE_POSTGRESQL_LWLOCK_ACQUIRE
tracepoint, but LWLockWaitForVar() never actually acquires the LWLock.
(Probably a copy/paste bug in 68a2e52bbaf.)  Remove it.

Author: Craig Ringer <[hidden email]>
Discussion: https://www.postgresql.org/message-id/flat/CAGRY4nxJo+-HCC2i5H93ttSZ4gZO-FSddCwvkb-qAfQ1zdXd1w@...

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/09418bed67a7d5d5a8c9c3070f4c9048455a5389

Modified Files
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src/backend/storage/lmgr/lwlock.c | 2 --
1 file changed, 2 deletions(-)