Remove NO_RETURN

No longer true for the code when kUseReadBarrier is false.

Test: test-art-host
Change-Id: If9fafd62e9aa664237a6fa1cffeb81e17ed4f2d9
diff --git a/runtime/mirror/object.h b/runtime/mirror/object.h
index e807ea4..e19b524 100644
--- a/runtime/mirror/object.h
+++ b/runtime/mirror/object.h
@@ -106,9 +106,6 @@
   // Get the read barrier state with a load-acquire.
   ALWAYS_INLINE uint32_t GetReadBarrierStateAcquire() REQUIRES_SHARED(Locks::mutator_lock_);
 
-#ifndef USE_BAKER_OR_BROOKS_READ_BARRIER
-  NO_RETURN
-#endif
   ALWAYS_INLINE void SetReadBarrierState(uint32_t rb_state) REQUIRES_SHARED(Locks::mutator_lock_);
 
   template<std::memory_order kMemoryOrder = std::memory_order_relaxed>