Revert "Make sure to never write kits/Qt/TCs before they were read"

This patch causes core dumps in my work-creator while it works fine
in my test creator. Revert till I find the reason for this.

This reverts commit 5d253b37.

Change-Id: Ib9912cda15294c28b9136f79675e0e5694788d5b
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>