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

chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc

Index: chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc
diff --git a/chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc b/chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc
index 42e5bcf442f58fba6abd688cc56a44fb5134f18a..624d469dc5e4e8b72a3eedd68689f357ec6c8b15 100644
--- a/chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc
+++ b/chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc
@@ -327,11 +327,6 @@ void PermissionPromptImpl::Closing() {
     delegate_->Closing();
 }
 
-void PermissionPromptImpl::ToggleAccept(int index, bool value) {
-  if (delegate_)
-    delegate_->ToggleAccept(index, value);
-}
-
 void PermissionPromptImpl::TogglePersist(bool value) {
   if (delegate_)
     delegate_->TogglePersist(value);