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

tools/clang/blink_gc_plugin/tests/ignore_class.h

Index: tools/clang/blink_gc_plugin/tests/ignore_class.h
diff --git a/tools/clang/blink_gc_plugin/tests/ignore_class.h b/tools/clang/blink_gc_plugin/tests/ignore_class.h
deleted file mode 100644
index 580ed7c5d56cf23318192cdd45ee19b2d979237b..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/ignore_class.h
+++ /dev/null
@@ -1,40 +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 IGNORE_CLASS_H_
-#define IGNORE_CLASS_H_
-
-#include "heap/stubs.h"
-
-namespace blink {
-
-class HeapObject : public GarbageCollected<HeapObject> { };
-
-// Don't require trace method on ignored class.
-class GC_PLUGIN_IGNORE("http://crbug.com/12345") A;
-class A : public GarbageCollected<A> {
-private:
-    Member<HeapObject> m_obj;
-};
-
-// Don't require tracing of fields on ignored class.
-class GC_PLUGIN_IGNORE("http://crbug.com/12345") B;
-class B : public GarbageCollected<B> {
-public:
-    virtual void trace(Visitor*);
-private:
-    Member<HeapObject> m_obj;
-};
-
-// Don't require tracing of an ignored base class.
-class C : public B {
-public:
-    void trace(Visitor*);
-private:
-    Member<HeapObject> m_obj;
-};
-
-}
-
-#endif