Lint conditional deletion of t in addCurrentTimeToURL inside player script

Follow lint indications :
https://github.com/iv-org/invidious/pull/2912#discussion_r811474927

assets/js/player.js

@@ -60,9 +60,8 @@ function addCurrentTimeToURL(url) {
     var currentTime = Math.ceil(player.currentTime());
     if (currentTime > 0)
         urlUsed.searchParams.set('t', currentTime);
-    else
-        if (urlUsed.searchParams.has('t'))
-            urlUsed.searchParams.delete('t');
+    else if (urlUsed.searchParams.has('t'))
+        urlUsed.searchParams.delete('t');
     return urlUsed;
 }