Delete ABSL_ANNOTATE_MEMORY_IS_INITIALIZED under Thread Sanitizer

PiperOrigin-RevId: 617266753
Change-Id: I6cac7b4616001c8d435fb1786da81b746f2d14cb
diff --git a/absl/base/dynamic_annotations.h b/absl/base/dynamic_annotations.h
index 7ba8912..f18b5e0 100644
--- a/absl/base/dynamic_annotations.h
+++ b/absl/base/dynamic_annotations.h
@@ -252,25 +252,9 @@
 
 #else  // !defined(ABSL_HAVE_MEMORY_SANITIZER)
 
-// TODO(rogeeff): remove this branch
-#ifdef ABSL_HAVE_THREAD_SANITIZER
-#define ABSL_ANNOTATE_MEMORY_IS_INITIALIZED(address, size) \
-  do {                                                     \
-    (void)(address);                                       \
-    (void)(size);                                          \
-  } while (0)
-#define ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) \
-  do {                                                       \
-    (void)(address);                                         \
-    (void)(size);                                            \
-  } while (0)
-#else
-
 #define ABSL_ANNOTATE_MEMORY_IS_INITIALIZED(address, size)    // empty
 #define ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size)  // empty
 
-#endif
-
 #endif  // ABSL_HAVE_MEMORY_SANITIZER
 
 // -------------------------------------------------------------------------