How to remove page_actions

Hi,

We have a project pier install running as a way to preview work with clients, so all we want the to be able to see is messages and files when they click on a project, I have removed the other options (like milestones and tasks) from the project_website.php so they dont appear in the nav. how do I now remove them from the page actions that pop up on the overview pages?

Any help would be awesome!

Thank you!