Remove old wtf/ directory.

third_party/WebKit/Source/bindings/core/v8/BUILD.gn

 # 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.
 
 import("//testing/libfuzzer/fuzzer_test.gni")
 import("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/bindings/scripts/scripts.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 import("//third_party/WebKit/Source/core/core_idl_files.gni")
 
@@ skipping 332 matching lines @@
 
   configs -= core_config_remove
   configs += [
     "//third_party/WebKit/Source:inside_blink",
     "//third_party/WebKit/Source:config",
   ]
 
   deps = [
     ":bindings_core_impl_generated",
     "//skia",
-    "//third_party/WebKit/Source/wtf",
+    "//third_party/WebKit/Source/platform/wtf",
     "//v8",
   ]
 }
 
 fuzzer_test("v8_serialized_script_value_fuzzer") {
   sources = [
     "serialization/SerializedScriptValueFuzzer.cpp",
   ]
   seed_corpus = "serialization/fuzz_corpus"
   deps = [
     "//third_party/WebKit/Source/core",
     "//third_party/WebKit/Source/platform:blink_fuzzer_test_support",
   ]
 }