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

tools/clang/blink_gc_plugin/tests/persistent_field_in_gc_managed_class.h

Index: tools/clang/blink_gc_plugin/tests/persistent_field_in_gc_managed_class.h
diff --git a/tools/clang/blink_gc_plugin/tests/persistent_field_in_gc_managed_class.h b/tools/clang/blink_gc_plugin/tests/persistent_field_in_gc_managed_class.h
deleted file mode 100644
index 4cfcfce31343b98c294fb11a5ff233e6ff96a6ee..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/persistent_field_in_gc_managed_class.h
+++ /dev/null
@@ -1,31 +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 PERSISTENT_FIELD_IN_GC_MANAGED_CLASS_H_
-#define PERSISTENT_FIELD_IN_GC_MANAGED_CLASS_H_
-
-#include "heap/stubs.h"
-
-namespace blink {
-
-class HeapObject;
-
-class PartObject {
-    DISALLOW_ALLOCATION();
-private:
-    Persistent<HeapObject> m_obj;
-};
-
-class HeapObject : public GarbageCollected<HeapObject> {
-public:
-    void trace(Visitor*);
-private:
-    PartObject m_part;
-    HeapVector<PartObject> m_parts;
-    PersistentHeapVector<Member<HeapObject> > m_objs;
-};
-
-}
-
-#endif