esm: remove unused catch bindings

PR-URL: #24079
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Wyatt Preul <wpreul@gmail.com>

Author: cjihrig

lib/internal/modules/esm/loader.js

@@ -80,7 +80,7 @@ class Loader {
     if (this._resolve !== defaultResolve) {
       try {
         new URL(url);
-      } catch (e) {
+      } catch {
         throw new ERR_INVALID_RETURN_PROPERTY(
           'url', 'loader resolve', 'url', url
         );