Revert "Do not create server cert files"

This reverts commit ed818ab95ba01c05fafc910fad08dd5ab53eedcc.
Due to this change kubernetes cluster will be broken,
as different server certificates will be created on controller nodes.
The cerificates must be equal for proper functioning

Related-bug: https://mirantis.jira.com/browse/PROD-24174

Change-Id: I2bb7d99b4c2a2dcaebf21c91f6660cc0a60e5758
1 file changed