You can delete a page easily in MindTouch through the Page Options menu.
Delete a page
To delete a page, navigate to the page you want to delete and the click on Page Options -> Delete page
Restoring Deleted pages
If you accidently deleted a page or set of pages, you can restore them by going into the Deleted pages section in the Control Panel.
- Click on Site Tools and then Control Panel when the drop down menu appears.
- In the control panel, select Deleted Pages under the Maintenance and & History section.
- To the right of the page you desire restoration click on Restore.
- After the page load click on Restore at the top of the page and your deleted page should be by completely back to normal (Also it's subpages if you restored a page that had deleted articles too).