Delete the "more options" contextual menu in BI Launchpad

HI,

   In BI Launchpad, I want to delete the "Mobile Properties", the "History", and the "Categories" so this use wont see them.  Does anyone know how I can do that?  Look at the picture below and you can se what I am talking about.  Just to be clear, I don't want the use to see those three things when they click on "More Actions"

Thanks!