last one I promise (Monkestation#1054)

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Author: grungussuss

code/game/objects/effects/effect_system/effects_smoke.dm

@@ -219,7 +219,6 @@
 
 		var/where = "[AREACOORD(location)]"
 		if(carry.my_atom.fingerprintslast)
-			var/mob/M = get_mob_by_key(carry.my_atom.fingerprintslast)
 			log_game("A chemical smoke reaction has taken place in ([where])[contained]. Last touched by [carry.my_atom.fingerprintslast].")
 		else
 			log_game("A chemical smoke reaction has taken place in ([where])[contained]. No associated key.")