purge phonon config

Change-Id: If6d2d99b04345c29ff3c51616ff913771f3b8c11
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
make CONFIG feature evaluation failure non-fatal in cumulative mode

while we evaluate the features themselves in precise mode (which is the
reason why they can error out), we do not want them to terminate
cumulative project evaluation.

Change-Id: I70f3e1bcb2ca04a70c74ff484749ca92c1cf6372
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
remove dead code for printing parser/evaluator warnings

we print only errors anyway.
amends 3d960a16dc9

Change-Id: Iac1c69e1ae94229e3702d7e67163f9a60d04decc
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
print project errors after all. sometimes.

we evaluate prf files precisely, so we need to see their errors, as they
may give a hint why they terminated prematurely.
however, we prefix the errors with "WARNING:" to make them less scary.

Change-Id: Ia14953a5a9dc31af56ad6c338017dd5b85bb4494
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>