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

tools/clang/blink_gc_plugin/tests/class_requires_finalization_mixin.cpp

Index: tools/clang/blink_gc_plugin/tests/class_requires_finalization_mixin.cpp
diff --git a/tools/clang/blink_gc_plugin/tests/class_requires_finalization_mixin.cpp b/tools/clang/blink_gc_plugin/tests/class_requires_finalization_mixin.cpp
deleted file mode 100644
index 782810eaa7d69cb85b9af13ddd48e1b284c191a5..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/class_requires_finalization_mixin.cpp
+++ /dev/null
@@ -1,37 +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.
-
-#include "class_requires_finalization_mixin.h"
-
-namespace blink {
-
-void MixinFinalizable::trace(Visitor* visitor)
-{
-    visitor->trace(m_onHeap);
-}
-
-void MixinNotFinalizable::trace(Visitor* visitor)
-{
-    visitor->trace(m_onHeap);
-}
-
-void NeedsFinalizer::trace(Visitor* visitor)
-{
-    visitor->trace(m_obj);
-    MixinFinalizable::trace(visitor);
-}
-
-void HasFinalizer::trace(Visitor* visitor)
-{
-    visitor->trace(m_obj);
-    MixinFinalizable::trace(visitor);
-}
-
-void NeedsNoFinalization::trace(Visitor* visitor)
-{
-    visitor->trace(m_obj);
-    MixinNotFinalizable::trace(visitor);
-}
-
-}