Remove spammy 'Trying to connect fileno' log message

This message is repeated almost every second for every VM where
no connection to the VM can be established. This can be a lot of
log messages which have actually no value and are creating a huge
load of noise.

This patch removes the logging of this message.

Change-Id: Ic8a1a1d958679f700d1dd257592ec3072a3355b4
Signed-off-by: Vinzenz Feenstra <vfeenstr@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/31533
Reviewed-by: Dan Kenigsberg <danken@redhat.com>