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

tools/clang/plugins/tests/blacklisted_dirs.cpp

Index: tools/clang/plugins/tests/blacklisted_dirs.cpp
diff --git a/tools/clang/plugins/tests/blacklisted_dirs.cpp b/tools/clang/plugins/tests/blacklisted_dirs.cpp
deleted file mode 100644
index a94eedd2e175c21a06375d021ecb951b386817d0..0000000000000000000000000000000000000000
--- a/tools/clang/plugins/tests/blacklisted_dirs.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 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.
-
-struct Base {
-  virtual void foo();
-};
-
-#line 1 "/src/chromium/src/myheader.h"
-struct Derived : public Base {
-  virtual void foo();  // Should warn about missing 'override'.
-};
-
-#line 123 "/src/chrome-breakpad/src/myheader.h"
-struct Derived2 : public Base {
-  virtual void foo();  // Should warn about missing 'override'.
-};
-
-#line 123 "/src/chrome-breakpad/src/breakpad/myheader.h"
-struct Derived3 : public Base {
-  virtual void foo();  // Should not warn; file is in a blacklisted dir.
-};