Fix crash in virsystemdtest with dbus 1.7.6
Fix crash in virsystemdtest with dbus 1.7.6

D-bus introduced some changes in its locking code. Overriding the init
function skips the new locking init and thus crashes later in libvirt
test. Removing the function makes the test pass again.

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