test: remove unused variable from catch

Paige Kato · rvagg · commit 1e21c0a2a437 · 2018-11-28T11:26:36.000+11:00
PR-URL: #23477 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
diff --git a/test/parallel/test-readline-interface.js b/test/parallel/test-readline-interface.js
@@ -509,7 +509,7 @@ function isWarned(emitter) {
     });
     try {
       fi.emit('data', 'fooX');
-    } catch (e) { }
+    } catch { }
     fi.emit('data', 'bar');
     assert.strictEqual(keys.join(''), 'fooXbar');
     rli.close();
