Whether or not a pacifist can fire a gun is no longer based on the gun being harmful, but the chambered round being harmful (#36670)

fix: makes dragnet non harmful
tweak: pacifists can now use any disabler or stun setting on any energy gun
code: removed all of the pacifism check code from code/modules/mob/living/living.dm
code: gun objects no longer have a harmful variable, instead, ammo_casing objects now have a harmful variable, which is by default set to TRUE
code: if a pacifist fires a gun, it checks whether or not the round chambered is lethal, instead of whether or not the gun itself is lethal.

code/modules/mob/living/living.dm

@@ -879,14 +879,6 @@
 	if(G.trigger_guard != TRIGGER_GUARD_ALLOW_ALL && !IsAdvancedToolUser())
 		to_chat(src, "<span class='warning'>You don't have the dexterity to do this!</span>")
 		return FALSE
-	var/obj/item/gun/shooty
-	if(istype(G, /obj/item/gun))
-		shooty = G
-	if(has_trait(TRAIT_PACIFISM))
-		if(shooty && !shooty.harmful)
-			return TRUE
-		to_chat(src, "<span class='notice'>You don't want to risk harming anyone!</span>")
-		return FALSE
 	return TRUE