[ML] Removing redundant release note (#80417)
[ML] Removing redundant release note (#80417)

The release note about not doing a rolling upgrade to 8.0.0-beta1
if using ML is no longer required because 8.0.0-beta1 was rebuilt
to include #80041.
GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch