Revert "Add [WillBeGarbageCollected] to Event.idl"

Source/bindings/templates/interface.cpp

Index: Source/bindings/templates/interface.cpp
diff --git a/Source/bindings/templates/interface.cpp b/Source/bindings/templates/interface.cpp
index c6fadd583de5b5e862ec7ff0c468830d5464ad48..0c2bedb14fc9967f5e26b20976f8f30a1b297742 100644
--- a/Source/bindings/templates/interface.cpp
+++ b/Source/bindings/templates/interface.cpp
@@ -643,11 +643,11 @@ static void constructor(const v8::FunctionCallbackInfo<v8::Value>& info)
         {% endfor %}
     }
     {% if is_constructor_raises_exception %}
-    RefPtrWillBeRawPtr<{{cpp_class}}> event = {{cpp_class}}::create(type, eventInit, exceptionState);
+    RefPtr<{{cpp_class}}> event = {{cpp_class}}::create(type, eventInit, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     {% else %}
-    RefPtrWillBeRawPtr<{{cpp_class}}> event = {{cpp_class}}::create(type, eventInit);
+    RefPtr<{{cpp_class}}> event = {{cpp_class}}::create(type, eventInit);
     {% endif %}
     {% if any_type_attributes and not interface_name == 'ErrorEvent' %}
     {# If we're in an isolated world, create a SerializedScriptValue and store