Remove tools/clang (this will break things temporarily).

tools/clang/blink_gc_plugin/tests/class_overrides_new.h

Index: tools/clang/blink_gc_plugin/tests/class_overrides_new.h
diff --git a/tools/clang/blink_gc_plugin/tests/class_overrides_new.h b/tools/clang/blink_gc_plugin/tests/class_overrides_new.h
deleted file mode 100644
index 3e80e3705d874fbade5bbe55d42fe872d874f9f0..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/class_overrides_new.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CLASS_OVERRIDES_NEW_H_
-#define CLASS_OVERRIDES_NEW_H_
-
-#include "heap/stubs.h"
-
-namespace blink {
-
-class HeapObject : public GarbageCollected<HeapObject> {
-    WTF_MAKE_FAST_ALLOCATED;
-public:
-    void trace(Visitor*) { }
-};
-
-}
-
-#endif