lib: remove unused 'e' from catch

PR-URL: #23458
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Hitesh Kanwathirtha <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Sakthipriyan Vairamani <[email protected]>

lib/querystring.js

@@ -109,7 +109,7 @@ function unescapeBuffer(s, decodeSpaces) {
 function qsUnescape(s, decodeSpaces) {
   try {
     return decodeURIComponent(s);
-  } catch (e) {
+  } catch {
     return QueryString.unescapeBuffer(s, decodeSpaces).toString();
   }
 }