Just clean original config

Original config file should not be deleted but only cleaned,
so that it is not recreated during package update.

Change-Id: I8ead90fd92c20dc7ebeadbb9134a6c21a52d3481
Closes-Bug: 1347533
Closes-Bug: rhbz#1122192
(cherry picked from commit f8511f2f79f5457940f1617f4e786cac2264b7e4)