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/projectiles/guns/magic/staff.dm

@@ -27,7 +27,6 @@
 	ammo_type = /obj/item/ammo_casing/magic/heal
 	icon_state = "staffofhealing"
 	item_state = "staffofhealing"
-	harmful = FALSE
 
 /obj/item/gun/magic/staff/healing/handle_suicide() //Stops people trying to commit suicide to heal themselves
 	return
@@ -60,7 +59,6 @@
 	max_charges = 10
 	recharge_rate = 2
 	no_den_usage = 1
-	harmful = FALSE
 
 /obj/item/gun/magic/staff/honk
 	name = "staff of the honkmother"
@@ -71,7 +69,6 @@
 	item_state = "honker"
 	max_charges = 4
 	recharge_rate = 8
-	harmful = FALSE
 
 /obj/item/gun/magic/staff/spellblade
 	name = "spellblade"

code/modules/projectiles/guns/magic/wand.dm

@@ -8,7 +8,6 @@
 	can_charge = 0
 	max_charges = 100 //100, 50, 50, 34 (max charge distribution by 25%ths)
 	var/variable_charges = 1
-	harmful = FALSE
 
 /obj/item/gun/magic/wand/Initialize()
 	if(prob(75) && variable_charges) //25% chance of listed max charges, 50% chance of 1/2 max charges, 25% chance of 1/3 max charges
@@ -86,7 +85,6 @@
 	fire_sound = 'sound/magic/staff_healing.ogg'
 	icon_state = "revivewand"
 	max_charges = 10 //10, 5, 5, 4
-	harmful = FALSE
 
 /obj/item/gun/magic/wand/resurrection/zap_self(mob/living/user)
 	user.revive(full_heal = 1)
@@ -127,7 +125,6 @@
 	icon_state = "telewand"
 	max_charges = 10 //10, 5, 5, 4
 	no_den_usage = 1
-	harmful = FALSE
 
 /obj/item/gun/magic/wand/teleport/zap_self(mob/living/user)
 	if(do_teleport(user, user, 10))
@@ -149,7 +146,6 @@
 	fire_sound = 'sound/magic/staff_door.ogg'
 	max_charges = 20 //20, 10, 10, 7
 	no_den_usage = 1
-	harmful = FALSE
 
 /obj/item/gun/magic/wand/door/zap_self(mob/living/user)
 	to_chat(user, "<span class='notice'>You feel vaguely more open with your feelings.</span>")