IDL: Generate all constructor callbacks with the same template macro

Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.cpp

Index: Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.cpp
diff --git a/Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.cpp b/Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.cpp
index fea5f8162f4f520e02f8b54ff84f4ac5ab63535d..be34d8c4c60fa8eb4737b79f8c2ac0345d8c8ae6 100644
--- a/Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.cpp
+++ b/Source/bindings/tests/results/V8TestInterfaceWillBeGarbageCollected.cpp
@@ -138,9 +138,6 @@ static void V8TestInterfaceWillBeGarbageCollectedConstructorCallback(const v8::F
         v8SetReturnValue(info, info.Holder());
         return;
     }
-
-    Document& document = *toDocument(currentExecutionContext(isolate));
-
     if (UNLIKELY(info.Length() < 1)) {
         throwMinimumArityTypeErrorForConstructor("TestInterfaceWillBeGarbageCollected", 1, info.Length(), info.GetIsolate());
         return;