This made sense only for Symbian where there was a special
CFbsBitmap-based backend present and it was used from the
Symbian-specific VG and GL pixmap implementations.
The generic version is merely a useless wrapper over QImage and is not
in use anywhere in the codebase.
Change-Id: I1dabe22dfb8cbbc35dce8e22703a3aff810fb5f9
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>