cleanup: Remove comments about lack of UseCounter support for workers.

third_party/WebKit/Source/modules/fetch/GlobalFetch.cpp

 // 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.
 
 #include "modules/fetch/GlobalFetch.h"
 
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/UseCounter.h"
 #include "core/probe/CoreProbes.h"
 #include "core/workers/WorkerGlobalScope.h"
@@ skipping 93 matching lines @@
   }
   return ScopedFetcher::From(window)->Fetch(script_state, input, init,
                                             exception_state);
 }
 
 ScriptPromise GlobalFetch::fetch(ScriptState* script_state,
                                  WorkerGlobalScope& worker,
                                  const RequestInfo& input,
                                  const Dictionary& init,
                                  ExceptionState& exception_state) {
-  // Note that UseCounter doesn't work with SharedWorker or ServiceWorker.
   UseCounter::Count(worker.GetExecutionContext(), UseCounter::kFetch);
   return ScopedFetcher::From(worker)->Fetch(script_state, input, init,
                                             exception_state);
 }
 
 }  // namespace blink