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

tools/clang/blink_gc_plugin/tests/traceimpl_dependent_scope.cpp

Index: tools/clang/blink_gc_plugin/tests/traceimpl_dependent_scope.cpp
diff --git a/tools/clang/blink_gc_plugin/tests/traceimpl_dependent_scope.cpp b/tools/clang/blink_gc_plugin/tests/traceimpl_dependent_scope.cpp
deleted file mode 100644
index 11b576cf438f0198b1fea36a0f9c722a5a15e63a..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/traceimpl_dependent_scope.cpp
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2015 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 "traceimpl_dependent_scope.h"
-
-namespace blink {
-
-// Template instantiation.
-template class Derived<int>;
-template class DerivedMissingTrace<int>;
-
-}