Remove news of unmanaged macvtap devices since Laine has update that.
v1:
https://www.redhat.com/archives/libvir-list/2019-November/msg00176.html

Han Han (4):
  news: Support for kvm dedicated performance hint in 5.7
  news: Support to run SLIRP in a separate process in 5.8
  news: Support vhost-user-gpu in 5.8
  news: Introduce virConnectSetIdentity API in 5.8

 docs/news.xml | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

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2.23.0