Reformat some code and don't use the clickTrackingParams in continuations of YouTube Music search results

The clickTrackingParams of YouTube Music search results are not needed to get continuations. This commit removes their use, which may improve privacy.

Author: AudricV

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

@@ -79,11 +79,13 @@ private String parseDecodeFunction(final String playerJsCode, final String funct
         }
     }
 
+    @Nonnull
     private String parseWithParenthesisMatching(final String playerJsCode, final String functionName) {
         final String functionBase = functionName + "=function";
         return functionBase + StringUtils.matchToClosingParenthesis(playerJsCode, functionBase) + ";";
     }
 
+    @Nonnull
     private String parseWithRegex(final String playerJsCode, final String functionName) throws Parser.RegexException {
         Pattern functionPattern = Pattern.compile(functionName + "=function(.*?}};)\n",
                 Pattern.DOTALL);