diff --git a/services/surfaceflinger/clz.cpp b/services/surfaceflinger/clz.cpp
deleted file mode 100644
index 2456b86ac..000000000
--- a/services/surfaceflinger/clz.cpp
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "clz.h"
-
-namespace android {
-
-int clz_impl(int32_t x)
-{
-#if defined(__arm__) && !defined(__thumb__)
-    return __builtin_clz(x);
-#else
-    if (!x) return 32;
-    int e = 31;
-    if (x&0xFFFF0000)   { e -=16; x >>=16; }
-    if (x&0x0000FF00)   { e -= 8; x >>= 8; }
-    if (x&0x000000F0)   { e -= 4; x >>= 4; }
-    if (x&0x0000000C)   { e -= 2; x >>= 2; }
-    if (x&0x00000002)   { e -= 1; }
-    return e;
-#endif
-}
-
-}; // namespace android