Remove remaining dead code that was used to implement grouped permission drop downs

chrome/browser/permissions/grouped_permission_infobar_delegate_android.h

Index: chrome/browser/permissions/grouped_permission_infobar_delegate_android.h
diff --git a/chrome/browser/permissions/grouped_permission_infobar_delegate_android.h b/chrome/browser/permissions/grouped_permission_infobar_delegate_android.h
index 148379c948e3fdd24bdba1c87d26615d5096e428..e048afe0a34e93ef57af94fb5421eca0556bdad3 100644
--- a/chrome/browser/permissions/grouped_permission_infobar_delegate_android.h
+++ b/chrome/browser/permissions/grouped_permission_infobar_delegate_android.h
@@ -41,9 +41,6 @@ class GroupedPermissionInfoBarDelegate : public ConfirmInfoBarDelegate {
   // Message text to display for an individual permission at |position|.
   base::string16 GetMessageTextFragment(size_t position) const;
 
-  // Toggle accept value for an individual permission at |position|.
-  void ToggleAccept(size_t position, bool new_value);
-
   // ConfirmInfoBarDelegate:
   base::string16 GetMessageText() const override;
   bool Accept() override;