After agreement in the mail list, core developers agree to remove this
engine that was not being supported for a long time.
Given that most operations Evas uses are not accelerated in DirectFB,
or at least hardware that exclusively supports DirectFB, it's better
for those people to just use Evas/Ecore software (buffer) rendering
and expose DirectFB's framebuffer as destination surface.
SVN revision: 80232
dfe93a7f0a