Formatting: Fixed formatting in _CPPopoverWindow

Refs #2137

AppKit/_CPPopoverWindow.j

@@ -589,9 +589,7 @@ var _CPPopoverWindow_shouldClose_    = 1 << 4,
     // Make absolutely sure no dangling event listeners are left
 #if PLATFORM(DOM)
     if (_animates && _browserAnimates)
-    {
         _DOMElement.removeEventListener(CPBrowserStyleProperty("transitionend"), _orderOutTransitionFunction, YES);
-    }
 #endif
 
     [self _removeFrameObserver];