rmoved obsolete tsm-datastore-lib dependency

rmoved obsolete tsm-datastore-lib dependency, because we have no need for it anymore.

This is the last piece in the whole timeio system where we still had this requirement.

with this MR we're datastore-lib free

added cron label

requested review from @david.schaefer

assigned to @bert.palm

changed the description

Yiehha!

approved this merge request

mentioned in commit 2e882fcc

merged