[JIRA] (OVIRT-2042) Drop FC25 support from STDCI

Drop FC25 support from STDCI ---------------------------- Key: OVIRT-2042 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-2042 Project: oVirt - virtualization made easy Issue Type: New Feature Components: CI Mirrors, mock_runner Reporter: Barak Korren Assignee: Barak Korren Since FC25 is not/should not be used any more, drop the STDCI support for it including: # Mirrors # Mock configuration files