Setting this to an empty string doesn't make sense nor works

Change-Id: I4dd89d0356da30bc46e5fdac827e30b6f9a6a7a4
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Alan Alpert <aalpert@blackberry.com>