Remove extraneous comments/code from migrations

src/NzbDrone.Core/Datastore/Migration/195_parse_language_tags_from_existing_subtitle_files.cs

@@ -1,8 +1,5 @@
-using System;
 using System.Collections.Generic;
 using System.Data;
-using System.Text.Json;
-using System.Text.Json.Serialization;
 using Dapper;
 using FluentMigrator;
 using NzbDrone.Core.Datastore.Migration.Framework;
@@ -21,7 +18,6 @@ namespace NzbDrone.Core.Datastore.Migration
         private void UpdateLanguageTags(IDbConnection conn, IDbTransaction tran)
         {
             var updatedLanguageTags = new List<object>();
-            var now = DateTime.Now;
 
             using (var cmd = conn.CreateCommand())
             {
@@ -43,16 +39,6 @@ namespace NzbDrone.Core.Datastore.Migration
                 }
             }
 
-            var serializerSettings = new JsonSerializerOptions
-            {
-                AllowTrailingCommas = true,
-                DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
-                PropertyNameCaseInsensitive = true,
-                DictionaryKeyPolicy = JsonNamingPolicy.CamelCase,
-                PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
-                WriteIndented = true
-            };
-
             var updateSubtitleFilesSql = "UPDATE \"SubtitleFiles\" SET \"LanguageTags\" = @LanguageTags, \"LastUpdated\" = CURRENT_TIMESTAMP WHERE \"Id\" = @Id";
             conn.Execute(updateSubtitleFilesSql, updatedLanguageTags, transaction: tran);
         }

src/NzbDrone.Core/Datastore/Migration/199_series_last_aired.cs

@@ -9,8 +9,6 @@ namespace NzbDrone.Core.Datastore.Migration
         protected override void MainDbUpgrade()
         {
             Alter.Table("Series").AddColumn("LastAired").AsDateTimeOffset().Nullable();
-
-            // Execute.Sql("UPDATE Series SET LastAired = ");
         }
     }
 }