SF # 533070 Silence AIX C Compiler Warnings

Warning caused by using &func.  & is not necessary.
diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c
index 395e654..240e9a9 100644
--- a/Modules/signalmodule.c
+++ b/Modules/signalmodule.c
@@ -522,7 +522,7 @@
 		Py_INCREF(IntHandler);
 		Py_DECREF(Handlers[SIGINT].func);
 		Handlers[SIGINT].func = IntHandler;
-		old_siginthandler = PyOS_setsig(SIGINT, &signal_handler);
+		old_siginthandler = PyOS_setsig(SIGINT, signal_handler);
 	}
 
 #ifdef SIGHUP