[gnome-shell] cleanup: Remove another pair of unneeded parentheses

[Florian Müllner <fmuellner src gnome org>]

commit 284267008200f2528050f655ab2bf0443ea3e115
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Nov 16 17:14:38 2019 +0100

    cleanup: Remove another pair of unneeded parentheses
    
    Eslint didn't spot this before version 6.5, so this fell through
    the cracks.

 js/misc/extensionUtils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/js/misc/extensionUtils.js b/js/misc/extensionUtils.js
index 020042c8ae..3d01ad787c 100644
--- 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