modesetting: remove unnecessary error message, fix zaphod leases

I introduced this error with the MST hotplug code, but it can trigger
on zaphod setups, and is perfectly fine. There is no support for
MST/hotplug on zaphod setups currently, so we can just skip over
the dynamic connector handling here. However we shouldn't skip
over the lease handling so move it into the codepath.

Fixes: 9257b125 ("modesetting: add dynamic connector hotplug support (MST) (v3)")
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
3 jobs for fix-zaphod-error in 7 minutes and 15 seconds (queued for 1 second)
Status Job ID Name Coverage
  Docker Image
passed #1560398
debian-testing

00:00:32

 
  Build And Test
passed #1560399
autotools-build-and-test

00:06:42

passed #1560400
meson-build-and-test

00:01:35