Microsoft recently released the MBAM Compliance Data Cleanup Tool (MBAMCDCT) 2.5 which bring the compatibility with Microsoft BitLocker Administration and Monitoring (MBAM) 2.5.
MBAMCDCT 2.5 got the possibility to clean up the compliance database with the following criteria:
- An agent not reported from an amount of days
- A comma separated list of agent using the command line
- A list of agent in a specific text file
Keep in mind that this tool doesn't delete the recovery data.
For more information about this tool: http://blogs.technet.com/b/askcore/archive/2014/09/03/announcing-public-availability-of-mbam-compliance-data-cleanup-tool-2-5.aspx
You could download this tool here: http://gallery.technet.microsoft.com/MBAM-Compliance-Data-9b4c950d