bindings: removed unused includes from WorkerScriptController.cpp
bindings: removed unused includes from WorkerScriptController.cpp

BUG=358074

Review URL: https://codereview.chromium.org/662063004

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@184236 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs