Remove BOM from UTF-8 files

I think some people need to change their IDE configuration ;)

MediaBrowser.Controller/LiveTv/ActiveRecordingInfo.cs

@@ -1,4 +1,4 @@
-#nullable disable
+#nullable disable
 
 #pragma warning disable CS1591
 

MediaBrowser.Controller/LiveTv/IListingsManager.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;

MediaBrowser.Controller/LiveTv/ITunerHostManager.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Model.Dto;