[Mac] Cleanup indirect delegate call from prior CL.

Nico's nit from http://codereview.chromium.org/7876004 which came
after I had committed.

TBR=thakis@chromium.org
BUG=none
TEST=none


Review URL: http://codereview.chromium.org/7969022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@102419 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/cocoa/translate/before_translate_infobar_controller.mm

@@ -108,7 +108,7 @@ NSButton* CreateNSButtonWithResourceIDAndParameter(
 - (void)neverTranslate:(id)sender {
   TranslateInfoBarDelegate* delegate = [self delegate];
   if (delegate)
-    [self delegate]->NeverTranslatePageLanguage();
+    delegate->NeverTranslatePageLanguage();
 }
 
 // This is called when the "Always Translate [language]" button is pressed.