testutils: Remove unneeded variable
testutils: Remove unneeded variable

virDomainXMLOptionNew() gladly accepts NULL and it is used in some
drivers.  There is no need for additional variable with no members set

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

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