fix: formatting

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelper.java

@@ -1484,7 +1484,6 @@ public final class YoutubeParsingHelper {
 
     /**
      * Create a map with the required cookie header.
-     *
      * @return A singleton map containing the header.
      */
     public static Map<String, List<String>> getCookieHeader() {
@@ -1804,9 +1803,6 @@ public final class YoutubeParsingHelper {
         return consentAccepted;
     }
 
-    private static final Pattern AUDIO_STREAM_TYPE_REGEX =
-            Pattern.compile("&xtags=[\\w%]*acont(?:=|%3D)([a-z]+)(?:=|%3D|:|%3A|&|$)");
-
     /**
      * Extract the audio track type from a YouTube stream URL.
      * <p>