Fixed formatting issues + previewBar not displaying.

Also changed the isSubmitButtonLoaded function to be checking for the right button and fixed the startSponsorButton not hiding.

Useless function was removed.

utils.js

@@ -38,14 +38,4 @@ function getYouTubeVideoID(url) {
       }
     }
 	return false;
-}
-
-//returns the start time of the video if there was one specified (ex. ?t=5s)
-function getYouTubeVideoStartTime(url) {
-  let searchParams = new URL(url).searchParams;
-  let startTime = searchParams.get("t");
-  if (startTime == null) {
-    startTime = searchParams.get("time_continue");
-  }
-  return startTime;
-}
+}