Remove POT-Creation-Date

This timestamp only creates conflicts and is usually stripped
automatically through gitattributes.

Change-Id: I63ddf567a2bf9dab39595a45c4a6c5c21e42bc72
add subscription expiration to license check

Change-Id: Id9bb2da54f633ecc38b206efe056c0d8181f59e5
Merge "Remove POT-Creation-Date"