Refactor to eliminate unneeded BasketQueryService

src/Infrastructure/Data/BasketQueryService.cs

@@ -1,26 +0,0 @@
-using System.Linq;
-using System.Threading.Tasks;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.eShopWeb.ApplicationCore.Interfaces;
-
-namespace Microsoft.eShopWeb.Infrastructure.Data;
-
-public class BasketQueryService : IBasketQueryService
-{
-    private readonly CatalogContext _dbContext;
-
-    public BasketQueryService(CatalogContext dbContext)
-    {
-        _dbContext = dbContext;
-    }
-
-    public async Task<int> CountTotalBasketItems(string username)
-    {
-        var totalItems = await _dbContext.Baskets
-            .Where(basket => basket.BuyerId == username)
-            .SelectMany(item => item.Items)
-            .SumAsync(sum => sum.Quantity);
-
-        return totalItems;
-    }
-}