Remove unused function parseItems
Remove unused function parseItems

vejbuch/node-steam-tradeoffers,Alex7Kom/node-steam-tradeoffers,GoeGaming/node-steam-tradeoffers,FelikZ/node-steam-tradeoffer-manager,nseckinoral/node-steam-tradeoffers,lpinca/node-steam-tradeoffers,LorienMan/node-steam-tradeoffers