Revert "Merge branch 'tool_behavior-replacing' of https://github.com/SandPoot/Citadel-Station-13 into tool_behavior-replacing"

This reverts commit 2e29f30fdf, reversing
changes made to 724910cfab.

code/modules/reagents/reagent_dispenser.dm

@@ -173,7 +173,7 @@
 			boom()
 
 /obj/structure/reagent_dispensers/fueltank/attackby(obj/item/I, mob/living/user, params)
-	if(I.tool_behaviour == TOOL_WELDER)
+	if(istype(I, /obj/item/weldingtool))
 		if(!reagents.has_reagent(/datum/reagent/fuel))
 			to_chat(user, "<span class='warning'>[src] is out of fuel!</span>")
 			return