Remove coming notification (#99494)

Co-authored-by: James Rodewig <[email protected]>

Author: JVerwolf

docs/reference/release-notes/8.10.0.asciidoc

@@ -1,8 +1,6 @@
 [[release-notes-8.10.0]]
 == {es} version 8.10.0
 
-coming[8.10.0]
-
 Also see <<breaking-changes-8.10,Breaking changes in 8.10>>.
 
 [[breaking-8.10.0]]

docs/reference/release-notes/highlights.asciidoc

@@ -1,8 +1,6 @@
 [[release-highlights]]
 == What's new in {minor-version}
 
-coming::[{minor-version}]
-
 Here are the highlights of what's new and improved in {es} {minor-version}!
 ifeval::["{release-state}"!="unreleased"]
 For detailed information about this release, see the <<es-release-notes>> and