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

tools/clang/blink_gc_plugin/tests/traceimpl.h

Index: tools/clang/blink_gc_plugin/tests/traceimpl.h
diff --git a/tools/clang/blink_gc_plugin/tests/traceimpl.h b/tools/clang/blink_gc_plugin/tests/traceimpl.h
deleted file mode 100644
index 64fae26be8649690bce7ce70da103cc34da7c706..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/traceimpl.h
+++ /dev/null
@@ -1,68 +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 TRACEIMPL_H_
-#define TRACEIMPL_H_
-
-#include "heap/stubs.h"
-
-namespace blink {
-
-class X : public GarbageCollected<X> {
- public:
-  virtual void trace(Visitor*) {}
-};
-
-class TraceImplInlined : public GarbageCollected<TraceImplInlined> {
- public:
-  void trace(Visitor* visitor) { traceImpl(visitor); }
-
-  template <typename VisitorDispatcher>
-  void traceImpl(VisitorDispatcher visitor) {
-    visitor->trace(x_);
-  }
-
- private:
-  Member<X> x_;
-};
-
-class TraceImplExtern : public GarbageCollected<TraceImplExtern> {
- public:
-  void trace(Visitor* visitor);
-  template <typename VisitorDispatcher>
-  inline void traceImpl(VisitorDispatcher);
-
- private:
-  Member<X> x_;
-};
-
-class Base : public GarbageCollected<Base> {
- public:
-  virtual void trace(Visitor* visitor) {}
-};
-
-class TraceImplBaseInlined : public Base {
- public:
-  void trace(Visitor* visitor) override { traceImpl(visitor); }
-
-  template <typename VisitorDispatcher>
-  void traceImpl(VisitorDispatcher visitor) {
-    Base::trace(visitor);
-  }
-};
-
-class TraceImplBaseExtern : public Base {
- public:
-  void trace(Visitor* visitor) override;
-
-  template <typename VisitorDispatcher>
-  void traceImpl(VisitorDispatcher);
-
- private:
-  Member<X> x_;
-};
-
-}
-
-#endif