diff --git a/libc/bionic/malloc_common.cpp b/libc/bionic/malloc_common.cpp
index 955cf18..863103d 100644
--- a/libc/bionic/malloc_common.cpp
+++ b/libc/bionic/malloc_common.cpp
@@ -325,9 +325,6 @@
   if (opcode == M_SET_ALLOCATION_LIMIT_BYTES) {
     return LimitEnable(arg, arg_size);
   }
-  if (opcode == M_SET_HEAP_TAGGING_LEVEL && arg_size == sizeof(HeapTaggingLevel)) {
-    return mallopt(M_BIONIC_SET_HEAP_TAGGING_LEVEL, *reinterpret_cast<HeapTaggingLevel*>(arg));
-  }
   if (opcode == M_INITIALIZE_GWP_ASAN) {
     if (arg == nullptr || arg_size != sizeof(bool)) {
       errno = EINVAL;
@@ -337,9 +334,6 @@
       return MaybeInitGwpAsan(globals, *reinterpret_cast<bool*>(arg));
     });
   }
-  if (opcode == M_DISABLE_MEMORY_MITIGATIONS && arg_size == sizeof(int)) {
-    return mallopt(M_BIONIC_DISABLE_MEMORY_MITIGATIONS, reinterpret_cast<intptr_t>(arg));
-  }
   errno = ENOTSUP;
   return false;
 }
diff --git a/libc/bionic/malloc_common_dynamic.cpp b/libc/bionic/malloc_common_dynamic.cpp
index 93d4d53..7a221d8 100644
--- a/libc/bionic/malloc_common_dynamic.cpp
+++ b/libc/bionic/malloc_common_dynamic.cpp
@@ -523,9 +523,6 @@
     }
     return FreeMallocLeakInfo(reinterpret_cast<android_mallopt_leak_info_t*>(arg));
   }
-  if (opcode == M_SET_HEAP_TAGGING_LEVEL && arg_size == sizeof(HeapTaggingLevel)) {
-    return mallopt(M_BIONIC_SET_HEAP_TAGGING_LEVEL, *reinterpret_cast<HeapTaggingLevel*>(arg));
-  }
   if (opcode == M_INITIALIZE_GWP_ASAN) {
     if (arg == nullptr || arg_size != sizeof(bool)) {
       errno = EINVAL;
@@ -535,9 +532,6 @@
       return MaybeInitGwpAsan(globals, *reinterpret_cast<bool*>(arg));
     });
   }
-  if (opcode == M_DISABLE_MEMORY_MITIGATIONS && arg_size == sizeof(int)) {
-    return mallopt(M_BIONIC_DISABLE_MEMORY_MITIGATIONS, reinterpret_cast<intptr_t>(arg));
-  }
   // Try heapprofd's mallopt, as it handles options not covered here.
   return HeapprofdMallopt(opcode, arg, arg_size);
 }
diff --git a/libc/platform/bionic/malloc.h b/libc/platform/bionic/malloc.h
index 313cbdf..b56ca74 100644
--- a/libc/platform/bionic/malloc.h
+++ b/libc/platform/bionic/malloc.h
@@ -86,12 +86,6 @@
   //   arg_size = sizeof(android_mallopt_leak_info_t)
   M_FREE_MALLOC_LEAK_INFO = 7,
 #define M_FREE_MALLOC_LEAK_INFO M_FREE_MALLOC_LEAK_INFO
-  // Change the heap tagging state. May be called at any time including when
-  // multiple threads are running.
-  //   arg = HeapTaggingLevel*
-  //   arg_size = sizeof(HeapTaggingLevel)
-  M_SET_HEAP_TAGGING_LEVEL = 8,
-#define M_SET_HEAP_TAGGING_LEVEL M_SET_HEAP_TAGGING_LEVEL
   // Query whether the current process is considered to be profileable by the
   // Android platform. Result is assigned to the arg pointer's destination.
   //   arg = bool*
@@ -106,13 +100,6 @@
   //   arg_size = sizeof(bool)
   M_INITIALIZE_GWP_ASAN = 10,
 #define M_INITIALIZE_GWP_ASAN M_INITIALIZE_GWP_ASAN
-  // Disable heap initialization across the whole process. If the hardware supports memory
-  // tagging, it also disables memory tagging. May be called at any time including
-  // when multiple threads are running. arg and arg_size are unused and must be set to 0.
-  // Note that the memory mitigations are only implemented in scudo and therefore this API call will
-  // have no effect when using another allocator.
-  M_DISABLE_MEMORY_MITIGATIONS = 11,
-#define M_DISABLE_MEMORY_MITIGATIONS M_DISABLE_MEMORY_MITIGATIONS
 };
 
 // Manipulates bionic-specific handling of memory allocation APIs such as
diff --git a/tests/heap_tagging_level_test.cpp b/tests/heap_tagging_level_test.cpp
index fd3b786..b3c8f22 100644
--- a/tests/heap_tagging_level_test.cpp
+++ b/tests/heap_tagging_level_test.cpp
@@ -15,11 +15,12 @@
  */
 
 #include <gtest/gtest.h>
+
+#include <malloc.h>
 #include <sys/prctl.h>
 
 #if defined(__BIONIC__)
 #include "gtest_globals.h"
-#include "platform/bionic/malloc.h"
 #include "platform/bionic/mte.h"
 #include "utils.h"
 
@@ -37,7 +38,7 @@
 }
 
 static bool SetHeapTaggingLevel(HeapTaggingLevel level) {
-  return android_mallopt(M_SET_HEAP_TAGGING_LEVEL, &level, sizeof(level));
+  return mallopt(M_BIONIC_SET_HEAP_TAGGING_LEVEL, level);
 }
 #endif