tweaks and optimization

code/game/objects/items/devices/aicard.dm

@@ -134,6 +134,6 @@
 		if(1.0)
 			del(src)
 		if(2.0)
-			if(prob(50)) del(src)
+			if(prob(50)) qdel(src)
 		if(3.0)
-			if(prob(25)) del(src)
+			if(prob(25)) qdel(src)

code/game/objects/items/devices/paicard.dm

@@ -317,4 +317,4 @@
 	if(pai)
 		pai.ex_act(severity)
 	else
-		del(src)
+		qdel(src)

code/game/objects/items/weapons/gift_wrappaper.dm

@@ -35,7 +35,7 @@
 	return
 
 /obj/item/weapon/a_gift/ex_act()
-	del(src)
+	qdel(src)
 	return
 
 /obj/effect/spresent/relaymove(mob/user as mob)