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

tools/clang/blink_gc_plugin/tests/left_most_gc_base.h

Index: tools/clang/blink_gc_plugin/tests/left_most_gc_base.h
diff --git a/tools/clang/blink_gc_plugin/tests/left_most_gc_base.h b/tools/clang/blink_gc_plugin/tests/left_most_gc_base.h
deleted file mode 100644
index 0d76d6161f4046e0651f0fbda3d72f447c08f279..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/left_most_gc_base.h
+++ /dev/null
@@ -1,30 +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 LEFT_MOST_GC_BASE_H_
-#define LEFT_MOST_GC_BASE_H_
-
-#include "heap/stubs.h"
-
-namespace blink {
-
-class A { };
-class B { };
-
-class Right : public A, public B, public GarbageCollected<Right> { };  // Error
-class Left : public GarbageCollected<Left>, public B, public A { };
-
-class DerivedRight : public Right, public Left { };  // Error
-class DerivedLeft : public Left, public Right { };
-
-class C : public GarbageCollected<C> {
-public:
-    virtual void trace(Visitor*);
-};
-
-class IllFormed : public A, public C { }; // Error
-
-}
-
-#endif