Service Worker: Remove ServiceWorker.terminate() method

Source/modules/serviceworkers/ServiceWorker.cpp

Index: Source/modules/serviceworkers/ServiceWorker.cpp
diff --git a/Source/modules/serviceworkers/ServiceWorker.cpp b/Source/modules/serviceworkers/ServiceWorker.cpp
index b352fac8684bce92fc6da1ef3114385ffb99c317..cdc4ba7921f3d6a9a3351df32a78aef2f408091c 100644
--- a/Source/modules/serviceworkers/ServiceWorker.cpp
+++ b/Source/modules/serviceworkers/ServiceWorker.cpp
@@ -63,11 +63,6 @@ void ServiceWorker::postMessage(ExecutionContext* context, PassRefPtr<Serialized
     m_outerWorker->postMessage(messageString, webChannels.leakPtr());
 }
 
-void ServiceWorker::terminate(ExceptionState& exceptionState)
-{
-    exceptionState.throwDOMException(InvalidAccessError, "Not supported.");
-}
-
 void ServiceWorker::internalsTerminate()
 {
     m_outerWorker->terminate();