Removes most instances of item_color

Notable exception is for clothing/under, those will have to be removed once item_state override is implemented.

code/modules/admin/topic.dm

@@ -2216,7 +2216,6 @@
 				for(var/obj/item/clothing/under/W in world)
 					W.icon_state = "schoolgirl"
 					W.item_state = "w_suit"
-					W.item_color = "schoolgirl"
 				message_admins("[key_name_admin(usr)] activated Japanese Animes mode")
 				world << sound('sound/AI/animes.ogg')
 			if("paintball")