Remove flag checking in MacVLanCreate helper stub
Remove flag checking in MacVLanCreate helper stub

When compiling without WITH_MACVTAP, we can get:
'unsupported flags (0x1) in function
virNetDevMacVLanCreateWithVPortProfile'
on an attempt to start a domain.

Remove the flag check to reach the more helpful error:
Cannot create macvlan devices on this platform

https://bugzilla.redhat.com/show_bug.cgi?id=1186928

eskultety/libvirt,datto/libvirt,olafhering/libvirt,libvirt/libvirt,olafhering/libvirt,taget/libvirt,datto/libvirt,datto/libvirt,eskultety/libvirt,taget/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,agx/libvirt,nertpinx/libvirt,rlaager/libvirt,eskultety/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,shugaoye/libvirt,jfehlig/libvirt,nertpinx/libvirt,shugaoye/libvirt,datto/libvirt,eskultety/libvirt,andreabolognani/libvirt,eskultety/libvirt,jardasgit/libvirt,jardasgit/libvirt,taget/libvirt,zippy2/libvirt,agx/libvirt,libvirt/libvirt,crobinso/libvirt,nertpinx/libvirt,andreabolognani/libvirt,datto/libvirt,nertpinx/libvirt,jardasgit/libvirt,crobinso/libvirt,shugaoye/libvirt,shugaoye/libvirt,jfehlig/libvirt,crobinso/libvirt,olafhering/libvirt,zippy2/libvirt,olafhering/libvirt,jfehlig/libvirt,rlaager/libvirt,andreabolognani/libvirt,libvirt/libvirt,jfehlig/libvirt,agx/libvirt,nertpinx/libvirt,agx/libvirt,taget/libvirt,jardasgit/libvirt,rlaager/libvirt,libvirt/libvirt,VenkatDatta/libvirt,rlaager/libvirt,zippy2/libvirt,taget/libvirt,crobinso/libvirt,agx/libvirt,rlaager/libvirt,VenkatDatta/libvirt,zippy2/libvirt,shugaoye/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,VenkatDatta/libvirt