Improve ASF codebase

ArchiSteamFarm/Core/ASF.cs

@@ -358,13 +358,7 @@ namespace ArchiSteamFarm.Core {
 				MemoryStream ms = new(response.Content as byte[] ?? response.Content.ToArray());
 
 				try {
-#if NETFRAMEWORK
-#pragma warning disable CA1508 // False positive, ms is not null here indeed, but using clause is needed for dispose
-					using (ms) {
-#pragma warning restore CA1508 // False positive, ms is not null here indeed, but using clause is needed for dispose
-#else
 					await using (ms.ConfigureAwait(false)) {
-#endif
 						using ZipArchive zipArchive = new(ms);
 
 						if (!UpdateFromArchive(zipArchive, SharedInfo.HomeDirectory)) {