instance check - not calling bring_forward imidietly after recieving msg on OSX

src/slic3r/GUI/InstanceCheckMac.mm

@@ -19,8 +19,6 @@
 
 -(void)message_update:(NSNotification *)msg
 {
-	//NSLog(@"recieved msg %@", msg);	
-	[self bring_forward];
 	//pass message  
 	Slic3r::GUI::wxGetApp().other_instance_message_handler()->handle_message(std::string([msg.userInfo[@"data"] UTF8String]));
 }