Remove pointless check for !ret in virDomainNetDefCoalesceParseXML
Remove pointless check for !ret in virDomainNetDefCoalesceParseXML

It was left there after removing a macro it was part of in first
version or so.  Now it will always be NULL.

Signed-off-by: Martin Kletzander <e82f23e74d43760279ebcc505dac4ae70d5627d0@redhat.com>

fabianfreyer/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,nertpinx/libvirt,datto/libvirt,eskultety/libvirt,datto/libvirt,libvirt/libvirt,eskultety/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,datto/libvirt,nertpinx/libvirt,jfehlig/libvirt,andreabolognani/libvirt,olafhering/libvirt,datto/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,olafhering/libvirt,jardasgit/libvirt,jfehlig/libvirt,nertpinx/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,zippy2/libvirt,crobinso/libvirt,crobinso/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,eskultety/libvirt,libvirt/libvirt,zippy2/libvirt,eskultety/libvirt,datto/libvirt,jardasgit/libvirt,eskultety/libvirt,libvirt/libvirt,zippy2/libvirt,crobinso/libvirt,crobinso/libvirt,jardasgit/libvirt,jardasgit/libvirt,olafhering/libvirt,olafhering/libvirt,jardasgit/libvirt,nertpinx/libvirt,zippy2/libvirt,libvirt/libvirt,andreabolognani/libvirt