Revert "cleanup envs dir still with root privileges"

This reverts commit 2eed54af1c000968f164e68a59c5219002278c96.
Only quite old icecream versions caused this, and it feels somewhat less
hackish to just clean up in specfile.
cleanup envs dir in %post in specfile

A different way of handling 2eed54af1c000968f164e68a59c5219002278c96 .