apply fix on GraphQL ...

Providers/Entities/XCategoryRepositoryProvider.cs

@@ -1,7 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.SignalR;
 using xCategoryService.Interfaces.Entities;
 using xCategoryService.Models.Entities;

Providers/GraphQL/XSubCategoryGraphQuery.cs

@@ -3,7 +3,6 @@ using xCategoryService.Interfaces.Entities;
 using xCategoryService.Models.Entities;
 using xDataService.Configuration;
 using xDataService.GraphQL;
-using xDataService.Interfaces;
 
 namespace xCategoryService.Providers.GraphQL
 {

Providers/GraphQL/XSubCategoryGraphSchema.cs

@@ -9,6 +9,5 @@ namespace xCategoryService.Providers.GraphQL
         {
             Query = (XSubCategoryGraphQuery)services.GetService(typeof(XSubCategoryGraphQuery));
         }
-
     }
 }