HBASE-22652 Flakey TestLockManager; test timed out after 780 seconds

Signed-off-by: Duo Zhang <Apache9@apache.org>

hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/TimeoutExecutorThread.java

@@ -78,10 +78,6 @@ public void add(InlineChore chore) {
   }
 
   public void add(Procedure<TEnvironment> procedure) {
-    // On the assert, we expect WAITING_TIMEOUT but timing could make it so lock gets released by
-    // time we get here and in those cases the state could be back to RUNNABLE. Let it
-    assert procedure.getState() == ProcedureState.WAITING_TIMEOUT ||
-      procedure.getState() == ProcedureState.RUNNABLE;
     LOG.info("ADDED {}; timeout={}, timestamp={}", procedure, procedure.getTimeout(),
       procedure.getTimeoutTimestamp());
     queue.add(new DelayedProcedure<>(procedure));