QtIFW

Remove operation xml verbose output.

Delete the operation and continue in error case without
adding the operation to the performed operations list.

Change-Id: I8e0f9bacb0d3b1e3fc1883b77e9a52d2f886d1b5
Reviewed-by: Karsten Heimrich <karsten.heimrich@nokia.com>
Reviewed-by: Tim Jenssen <tim.jenssen@nokia.com>