Remove kubevirt and set up redirects to community.kubevirt (#1317)

* Remove kubevirt and set up redirects to community.kubevirt

This also removes the dependency on community.kubernetes which fixes
ansible-collections/community.general#354.

* Update changelogs/fragments/1317-kubevirt-migration-removal.yml

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update changelogs/fragments/1317-kubevirt-migration-removal.yml

Co-authored-by: Felix Fontein <felix@fontein.de>

* Add missed redirects

Co-authored-by: Felix Fontein <felix@fontein.de>

tests/unit/requirements.txt

@@ -15,9 +15,6 @@ linode_api4 ; python_version > '2.6'  # APIv4
 python-gitlab < 2.3.0  # version 2.3.0 makes gitlab_runner tests fail
 httmock
 
-# requirement for kubevirt modules
-openshift ; python_version >= '2.7'
-
 # requirement for maven_artifact module
 lxml
 semantic_version