virDomainQemuAttach API: Removed Feature

Signed-off-by: Kowshik Jois B S <kowsjois@linux.ibm.com>

Author: bskjois

config/tests/guest/libvirt/memory.cfg

@@ -84,6 +84,7 @@ variants:
     - guest_libvirt_hooks:
         only libvirt_hooks
         no libvirt_hooks.virsh_attach
+        no libvirt_hooks.vm.virsh_attach
     - guest_hugepage:
         only libvirt_hugepage
         no libvirt_hugepage.contrast.with_mb.trans_disable.static_nonzero.mount_hugetlbfs