cleanup: Remove another pair of unneeded parentheses

Eslint didn't spot this before version 6.5, so this fell through
the cracks.

diff --git a/js/misc/extensionUtils.js b/js/misc/extensionUtils.js
index 020042c8aeacc2bcdcd5b1f4b55db6bc17777f58..3d01ad787ce0bb049ea4d7012a8946b3a50ba151 100644 (file)
--- a/js/misc/extensionUtils.js
+++ b/js/misc/extensionUtils.js
@@ -40,7 +40,7 @@ const SERIALIZED_PROPERTIES = ['type', 'state', 'path', 'error', 'hasPrefs', 'ca
  * an extension.
  */
 function getCurrentExtension() {
-    let stack = (new Error()).stack.split('\n');
+    let stack = new Error().stack.split('\n');
     let extensionStackLine;
 
     // Search for an occurrence of an extension stack frame