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

tools/clang/blink_gc_plugin/CollectVisitor.cpp

Index: tools/clang/blink_gc_plugin/CollectVisitor.cpp
diff --git a/tools/clang/blink_gc_plugin/CollectVisitor.cpp b/tools/clang/blink_gc_plugin/CollectVisitor.cpp
deleted file mode 100644
index 203e8adf24427a5fcb196f893feb1737d6caf41a..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/CollectVisitor.cpp
+++ /dev/null
@@ -1,32 +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 "CollectVisitor.h"
-
-#include "Config.h"
-
-using namespace clang;
-
-CollectVisitor::CollectVisitor() {
-}
-
-CollectVisitor::RecordVector& CollectVisitor::record_decls() {
-  return record_decls_;
-}
-
-CollectVisitor::MethodVector& CollectVisitor::trace_decls() {
-  return trace_decls_;
-}
-
-bool CollectVisitor::VisitCXXRecordDecl(CXXRecordDecl* record) {
-  if (record->hasDefinition() && record->isCompleteDefinition())
-    record_decls_.push_back(record);
-  return true;
-}
-
-bool CollectVisitor::VisitCXXMethodDecl(CXXMethodDecl* method) {
-  if (method->isThisDeclarationADefinition() && Config::IsTraceMethod(method))
-    trace_decls_.push_back(method);
-  return true;
-}