diff --git a/libc/platform/bionic/mte.h b/libc/platform/bionic/mte.h
index 1e393eb..b11b1a6 100644
--- a/libc/platform/bionic/mte.h
+++ b/libc/platform/bionic/mte.h
@@ -29,10 +29,9 @@
 #pragma once
 
 #include <sys/auxv.h>
-#include <bionic/mte_kernel.h>
 
 inline bool mte_supported() {
-#if defined(__aarch64__) && defined(ANDROID_EXPERIMENTAL_MTE)
+#if defined(__aarch64__)
   static bool supported = getauxval(AT_HWCAP2) & HWCAP2_MTE;
 #else
   static bool supported = false;
diff --git a/libc/platform/bionic/mte_kernel.h b/libc/platform/bionic/mte_kernel.h
deleted file mode 100644
index d81480a..0000000
--- a/libc/platform/bionic/mte_kernel.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#pragma once
-
-// Defines constants used as part of the interface in an experimental MTE branch
-// of the Linux kernel, which may be found at:
-//
-// https://github.com/pcc/linux/tree/android-experimental-mte
-//
-// This interface should not be considered to be stable.
-
-#ifdef ANDROID_EXPERIMENTAL_MTE
-
-#define HWCAP2_MTE (1 << 18)
-#define PROT_MTE 0x20
-
-#define PR_MTE_TCF_SHIFT 1
-#define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
-#define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)
-#define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)
-#define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT)
-#define PR_MTE_TAG_SHIFT 3
-#define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
-
-#define SEGV_MTEAERR 8
-#define SEGV_MTESERR 9
-
-#define PTRACE_PEEKMTETAGS 33
-#define PTRACE_POKEMTETAGS 34
-
-#define NT_ARM_TAGGED_ADDR_CTRL 0x409
-
-#endif