Revert "Add missing thread state change to kWaitingForCheckPointsToRun"

This reverts commit 20e11a7956eaebf97d7ed44bbca1c42948b3a580.

Change-Id: Ifde51cba3f02c64f2dac5bd95ddaf474f15e4f86
diff --git a/runtime/gc/heap.cc b/runtime/gc/heap.cc
index 8212d44..e1d1889 100644
--- a/runtime/gc/heap.cc
+++ b/runtime/gc/heap.cc
@@ -1040,7 +1040,6 @@
     // Trim locals indirect reference tables.
     Barrier barrier(0);
     TrimIndirectReferenceTableClosure closure(&barrier);
-    ScopedThreadStateChange tsc(self, kWaitingForCheckPointsToRun);
     size_t barrier_count = Runtime::Current()->GetThreadList()->RunCheckpoint(&closure);
     barrier.Increment(self, barrier_count);
   }