units: remove user-config-ovfenv.path
units: remove user-config-ovfenv.path

This unit doesn't actually exist. user-config-ovfenv.service is triggered by
media-ovfenv.mount so we don't need the path anyway.

endocode/coreos-cloudinit,coreos/coreos-cloudinit,endocode/coreos-cloudinit,coreos/coreos-cloudinit