disables tutorials

There is no config for this and the prod server will be connected to a fresh db so it will see all players as new.

code/modules/tutorials/_tutorial.dm

@@ -183,6 +183,7 @@
 
 /// Checks if the user should be given this tutorial
 /datum/tutorial_manager/proc/should_run(mob/user)
+	return FALSE
 	var/ckey = user.ckey
 
 	if (isnull(ckey))