Updates del usages.

code/modules/mob/living/carbon/human/human_powers.dm

@@ -253,6 +253,6 @@
 
 	visible_message("<span class='warning'>\The [src] quivers slightly, then splits apart with a wet slithering noise.</span>")
 
-	del(src)
+	qdel(src)
 
 

code/modules/mob/living/carbon/resist.dm

@@ -118,7 +118,7 @@
 
 		say(pick(";RAAAAAAAARGH!", ";HNNNNNNNNNGGGGGGH!", ";GWAAAAAAAARRRHHH!", "NNNNNNNNGGGGGGGGHH!", ";AAAAAAARRRGH!" ))
 
-		del(handcuffed)
+		qdel(handcuffed)
 		handcuffed = null
 		if(buckled && buckled.buckle_require_restraints)
 			buckled.unbuckle_mob()
@@ -139,7 +139,7 @@
 
 		say(pick(";RAAAAAAAARGH!", ";HNNNNNNNNNGGGGGGH!", ";GWAAAAAAAARRRHHH!", "NNNNNNNNGGGGGGGGHH!", ";AAAAAAARRRGH!" ))
 
-		del(legcuffed)
+		qdel(legcuffed)
 		legcuffed = null
 		update_inv_legcuffed()
 

code/modules/mob/living/simple_animal/friendly/farm_animals.dm

@@ -51,7 +51,7 @@
 
 		if(locate(/obj/machinery/portable_atmospherics/hydroponics/soil/invisible) in loc)
 			var/obj/machinery/portable_atmospherics/hydroponics/soil/invisible/SP = locate() in loc
-			del(SP)
+			qdel(SP)
 
 		if(!pulledby)
 			var/obj/effect/plant/food