Uses more QDEL_NULLs

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

@@ -241,8 +241,7 @@
 /obj/item/weapon/wirecutters/attack(mob/living/carbon/C, mob/user)
 	if(istype(C) && C.handcuffed && istype(C.handcuffed, /obj/item/weapon/restraints/handcuffs/cable))
 		user.visible_message("<span class='notice'>[user] cuts [C]'s restraints with [src]!</span>")
-		qdel(C.handcuffed)
-		C.handcuffed = null
+		QDEL_NULL(C.handcuffed)
 		if(C.buckled && C.buckled.buckle_requires_restraints)
 			C.buckled.unbuckle_mob(C)
 		C.update_handcuffed()