remove deprecated data

structures/inventory.js

@@ -25,7 +25,6 @@ inventorySchema.methods.createInventory = function (userID) {
     }
     this.inventory.items.push(walletData);
     this.inventory.createdAt = new Date();
-    this.inventory.updatedAt = this.inventory.createdAt;
 };
 
 inventorySchema.methods.addItem = function (item) {