If you just want to remove menu items from this theme, you can also just unset() it inside the template_menu() function. I don't know the variable names off the top of my head, but it would look something like this.
That would remove the help button from the array. Put it right before the foreach() loop in the template_menu() function. You can unset as many as you like.
unset($var1, $var2, $var3);