Removing a role from a Hyper-V Host machine

I have a Dell PowerEdge R620 server that is configured as a Hyper-V host machine.  It is hosting 5 virtual servers.  However, I had initially set this server up without virtualization, just a physical server with many roles configured:

DHCP, DNS, GC, File and Print server.

I know this is not recommended by Microsoft, but it worked well for us.  I have recently however, purchased more licensing Installed Hyper-V (GUI install) and set up 5 new virtual servers on this machine.  I now have all of the required roles set up across my VM's. 

I stripped all of the roles from my Hyper-V host (A Microsoft reccomends.)  So the only roles installed on my host are Hyper-V and File and Storage Services.

My question is, Can I remove the File and Storage Services role from the Host?  Or will this cause problems with my VM's?

Thanks in advance.

Nate