Obliterates the lasso (goliath riding no longer requires it) (#3417)

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## About The Pull Request

No longer player accessible as of #3296 which means less yeehaw

## Why It's Good For The Game

~~horse~~ goliathback cowboy combat

## Changelog

:cl:
balance: you no longer need a lasso to ride a goliath
del: no more lasso
/:cl:

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Signed-off-by: Theos <theubernyan@gmail.com>

code/game/objects/items/storage/belt.dm

@@ -383,8 +383,7 @@
 		/obj/item/storage/bag/plants,
 		/obj/item/stack/marker_beacon,
 		/obj/item/restraints/legcuffs/bola/watcher,
-		/obj/item/melee/sword/bone,
-		/obj/item/key/lasso
+		/obj/item/melee/sword/bone
 		))
 
 

code/modules/mob/living/simple_animal/hostile/mining_mobs/goliath.dm

@@ -226,7 +226,6 @@
 			D.set_vehicle_dir_layer(NORTH, OBJ_LAYER)
 			D.set_vehicle_dir_layer(EAST, OBJ_LAYER)
 			D.set_vehicle_dir_layer(WEST, OBJ_LAYER)
-			D.keytype = /obj/item/key/lasso
 			D.drive_verb = "ride"
 		else
 			user.visible_message("<span class='warning'>[src] is rocking around! You can't put the saddle on!</span>")

code/modules/vehicles/vehicle_key.dm

@@ -12,15 +12,3 @@
 /obj/item/key/janitor
 	desc = "A keyring with a small steel key, and a pink fob reading \"Pussy Wagon\"."
 	icon_state = "keyjanitor"
-
-/obj/item/key/lasso
-	name = "bone lasso"
-	desc = "Perfect for taming all kinds of supernatural beasts! (Warning: only perfect for taming one kind of supernatural beast.)"
-	force = 12
-	icon_state = "lasso"
-	item_state = "chain"
-	lefthand_file = 'icons/mob/inhands/weapons/melee_lefthand.dmi'
-	righthand_file = 'icons/mob/inhands/weapons/melee_righthand.dmi'
-	attack_verb = list("flogged", "whipped", "lashed", "disciplined")
-	hitsound = 'sound/weapons/whip.ogg'
-	slot_flags = ITEM_SLOT_BELT