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

tools/clang/blink_gc_plugin/tests/ignore_fields.h

Index: tools/clang/blink_gc_plugin/tests/ignore_fields.h
diff --git a/tools/clang/blink_gc_plugin/tests/ignore_fields.h b/tools/clang/blink_gc_plugin/tests/ignore_fields.h
deleted file mode 100644
index e12bbaba1be53f88eb81bd13614a8fce6ecee1e0..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/ignore_fields.h
+++ /dev/null
@@ -1,43 +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_FIELDS_H_
-#define IGNORE_FIELDS_H_
-
-#include "heap/stubs.h"
-
-namespace blink {
-
-class HeapObject : public GarbageCollected<HeapObject> {
-public:
-    virtual void trace(Visitor*) { }
-};
-
-// Don't warn about raw pointers to heap allocated objects.
-class A : public GarbageCollected<A>{
-private:
-    GC_PLUGIN_IGNORE("http://crbug.com/12345")
-    HeapObject* m_obj;
-};
-
-// Don't require trace method when (all) GC fields are ignored.
-class B : public GarbageCollected<B> {
-private:
-    GC_PLUGIN_IGNORE("http://crbug.com/12345")
-    Member<HeapObject> m_one;
-};
-
-// Don't require tracing an ignored field.
-class C : public GarbageCollected<C> {
-public:
-    void trace(Visitor*);
-private:
-    Member<HeapObject> m_one;
-    GC_PLUGIN_IGNORE("http://crbug.com/12345")
-    Member<HeapObject> m_two;
-};
-
-}
-
-#endif