I currently have a DHCP server configured on UCM. I want to move this to the switch that the UCM and all my phones are connected to. Do I need to delete the DHCP server from the UCM as I configure DHCP on the switch due to broadcast? Is there just a way to disable it, or do I have to delete it?
Yes, you have got it right. You are currently running DHCP on the CallManager. Disabling this service will disable DHCP on the CallManager and you would be able to use another DHCP server [switch in your case] for the IP Phones.