remove unneccessary "using" directives in mssql integration test classes.

Author: seantleonard

Cosmos.GraphQL.Service/Cosmos.GraphQL.Service.Tests/SqlTests/SqlQueryTests.cs

@@ -1,11 +1,5 @@
-using System;
-using System.Collections.Generic;
 using System.Data.Common;
-using System.IO;
-using System.Linq;
-using System.Text;
 using System.Text.Json;
-using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 

Cosmos.GraphQL.Service/Cosmos.GraphQL.Service.Tests/SqlTests/SqlTestHelper.cs

@@ -1,10 +1,5 @@
 using Cosmos.GraphQL.Service.Models;
 using Newtonsoft.Json;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Cosmos.GraphQL.Service.Tests.Sql
 {