Removes left inhand files, automatically mirrors inhands

code/game/objects/items.dm

@@ -4,7 +4,6 @@ var/global/image/fire_overlay = image("icon" = 'icons/effects/fire.dmi', "icon_s
 	name = "item"
 	icon = 'icons/obj/items.dmi'
 	var/item_state = null
-	var/lefthand_file = 'icons/mob/inhands/items_lefthand.dmi'
 	var/righthand_file = 'icons/mob/inhands/items_righthand.dmi'
 
 	//Dimensions of the icon file used when this item is worn, eg: hats.dmi

code/game/objects/items/toys.dm

@@ -134,7 +134,6 @@
 	icon = 'icons/obj/guns/projectile.dmi'
 	icon_state = "revolver"
 	item_state = "gun"
-	lefthand_file = 'icons/mob/inhands/guns_lefthand.dmi'
 	righthand_file = 'icons/mob/inhands/guns_righthand.dmi'
 	flags =  CONDUCT
 	slot_flags = SLOT_BELT

code/game/objects/items/weapons/pneumaticCannon.dm

@@ -7,7 +7,6 @@
 	icon = 'icons/obj/pneumaticCannon.dmi'
 	icon_state = "pneumaticCannon"
 	item_state = "bulldog"
-	lefthand_file = 'icons/mob/inhands/guns_lefthand.dmi'
 	righthand_file = 'icons/mob/inhands/guns_righthand.dmi'
 	armor = list(melee = 0, bullet = 0, laser = 0, energy = 0, bomb = 0, bio = 0, rad = 0, fire = 60, acid = 50)
 	var/maxWeightClass = 20 //The max weight of items that can fit into the cannon