Remove useless function in trade helpers

Author: vaisest

src/Classes/TradeHelpers.lua

@@ -339,7 +339,7 @@ end
 -- categoryLabel: e.g. "Shield", "1HMace", "1HWeapon" (nil for flask / generic jewel / unsupported)
 --- @param slotName string
 --- @param item table
-function M.getTradeCategoryInfo(slotName, item)
+function M.getTradeCategory(slotName, item)
 	if not slotName then return nil, nil end
 	local itemType = item and (item.type or (item.base and item.base.type))
 	if slotName:find("^Weapon %d") then
@@ -376,13 +376,6 @@ function M.getTradeCategoryInfo(slotName, item)
 	end
 end
 
--- Helper: map slot name + item type to trade API category string
---- @param item table
-function M.getTradeCategory(slotName, item)
-	if not item or not item.base then return nil end
-	local queryStr = M.getTradeCategoryInfo(slotName, item)
-	return queryStr
-end
 
 -- Helper: get a display-friendly category name from slot name
 --- @param item table

src/Classes/TradeQueryGenerator.lua

@@ -741,7 +741,7 @@ function TradeQueryGeneratorClass:StartQuery(slot, options)
 			itemCategoryQueryStr = "jewel"
 		end
 	else
-		itemCategoryQueryStr, itemCategory = tradeHelpers.getTradeCategoryInfo(slot.slotName, existingItem)
+		itemCategoryQueryStr, itemCategory = tradeHelpers.getTradeCategory(slot.slotName, existingItem)
 
 		-- Generic Jewel slot: caller selects the jewel subtype.
 		if slot.slotName:find("Jewel") ~= nil and not slot.slotName:find("Abyssal") then