Revert "Check if the URL is actually an HTTP URL"

This reverts commit e7b5d88.

Author: flagbug

YoutubeExtractor/YoutubeExtractor/DownloadUrlResolver.cs

@@ -140,15 +140,6 @@ public static System.Threading.Tasks.Task<IEnumerable<VideoInfo>> GetDownloadUrl
         /// </returns>
         public static bool TryNormalizeYoutubeUrl(string url, out string normalizedUrl)
         {
-            Uri uriResult;
-            bool isValidurl = Uri.TryCreate(x, UriKind.Absolute, out uriResult) && (uriResult.Scheme == Uri.UriSchemeHttp || uriResult.Scheme == Uri.UriSchemeHttps);
-
-            if (!isValidUrl)
-            {
-                normalizedUrl = null;
-                return false;
-            }
-
             url = url.Trim();
 
             url = url.Replace("youtu.be/", "youtube.com/watch?v=");