removed unused code

Author: lingxiao-microsoft

src/Service.Tests/SqlTests/SqlTestBase.cs

@@ -87,9 +87,6 @@ protected async static Task InitializeTestFixture(
             // Get the base config file from disk
             RuntimeConfig runtimeConfig = SqlTestHelper.SetupRuntimeConfig();
 
-            // Enable the feature flag for testing
-            runtimeConfig = runtimeConfig with { Runtime = runtimeConfig.Runtime with { GraphQL = runtimeConfig.Runtime?.GraphQL with { FeatureFlags = new() { EnableDwNto1JoinQueryOptimization = true } } } };
-
             // Setting the rest.request-body-strict flag as per the test fixtures.
             if (!isRestBodyStrict)
             {
@@ -344,7 +341,6 @@ protected static void SetUpSQLMetadataProvider(RuntimeConfigProvider runtimeConf
                     break;
                 case TestCategory.DWSQL:
                     Mock<ILogger<MsSqlQueryExecutor>> DwSqlQueryExecutorLogger = new();
-                    // enable the feature by default for testing purpose. 
                     _queryBuilder = new DwSqlQueryBuilder();
                     _defaultSchemaName = "dbo";
                     _dbExceptionParser = new MsSqlDbExceptionParser(runtimeConfigProvider);