https://support.f5.com/kb/en-us/solutions/public/13000/700/sol13738.html

Includes link to PDF here: http://www.f5.com/pdf/deployment-guides/citrix-vdi-iapp-dg.pdf

• If you haven’t applied the policy then just invoke the CLI.
• Make sure that you backup the bigip.conf to my.bigip.conf
  
• Make sure that you backup the bigip.conf.bak to my.bigip.conf.bak
• copy the bigip.conf.bak to bigip.conf (not the my.bigip.conf.bak)
• run the command tmsh load sys config

Note: bigip.conf.bak is always older than bigip.conf

From here: https://devcentral.f5.com/questions/apm-how-do-i-undo-a-vpe-change