Revert "virt-viewer-main: exit when domain names doesn't match"
    
    This reverts commit 10264d0d1ecbd67d3e59e3a1a3032936b0635eda.
    
    Commit a830275344c88aef12166661b68ea2b4429c7212 required the domain
    name to be placed just after the '--wait' option. It broke the
    command line api, because running 'virt-viewer $vm --wait' was considered
    as the error.
    
    Related: rhbz#1209398, rhbz#1211573