Tidy up the debugger.

services/debugger/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("//mojo/public/mojo_application.gni")
 
 mojo_native_application("debugger") {
   output_name = "debugger"
 
   sources = [
     "debugger.cc",
     "trace_collector.cc",
     "trace_collector.h",
   ]
 
   deps = [
     "//base",
     "//base/allocator",
     "//mojo/application",
     "//mojo/data_pipe_utils",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/system",
     "//mojo/public/cpp/utility",
     "//mojo/services/http_server/cpp",
     "//mojo/services/http_server/interfaces",
     "//mojo/services/network/interfaces",
     "//mojo/services/tracing/interfaces",
-    "//mojo/services/window_manager/interfaces",
   ]
 }