Revert "Swap to dapper and system.text.json for database backend"

This reverts commit d2065bfa1b.

src/NzbDrone.Core.Test/Framework/DbTest.cs

@@ -1,7 +1,10 @@
 using System;
 using System.Collections.Generic;
 using System.Data.SQLite;
+using System.IO;
 using System.Linq;
+using FluentMigrator.Runner;
+using Marr.Data;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
 using NUnit.Framework;
@@ -108,7 +111,7 @@ namespace NzbDrone.Core.Test.Framework
             Mocker.SetConstant<IConnectionStringFactory>(Mocker.Resolve<ConnectionStringFactory>());
             Mocker.SetConstant<IMigrationController>(Mocker.Resolve<MigrationController>());
 
-            SqlBuilderExtensions.LogSql = true;
+            MapRepository.Instance.EnableTraceLogging = true;
         }
 
         [SetUp]

src/NzbDrone.Core.Test/Framework/DirectDataMapper.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Data;
+using System.Data.Common;
 using System.Linq;
 using NzbDrone.Common.Serializer;
 using NzbDrone.Core.Datastore;
@@ -15,16 +16,27 @@ namespace NzbDrone.Core.Test.Framework
 
     public class DirectDataMapper : IDirectDataMapper
     {
-        private readonly IDatabase _database;
+        private readonly DbProviderFactory _providerFactory;
+        private readonly string _connectionString;
 
         public DirectDataMapper(IDatabase database)
         {
-            _database = database;
+            var dataMapper = database.GetDataMapper();
+            _providerFactory = dataMapper.ProviderFactory;
+            _connectionString = dataMapper.ConnectionString;
         }
         
+        private DbConnection OpenConnection()
+        {
+            var connection = _providerFactory.CreateConnection();
+            connection.ConnectionString = _connectionString;
+            connection.Open();
+            return connection;
+        }
+
         public DataTable GetDataTable(string sql)
         {
-            using (var connection = _database.OpenConnection())
+            using (var connection = OpenConnection())
             {
                 using (var cmd = connection.CreateCommand())
                 {