[fdo-internals] Disable GEOS support explicitly

[Mateusz Loskot]

Kenneth, GEOGRAF A/S wrote:
> If you remove GEOS from the OGR Provider, it will perform all
> intersection checks as BBOX overlap only.
> This will cause bad behavior with both selection and tooltip.

Yes, I perfectly understand it.
I'm not suggesting to disable GEOS completely.

> This can be fixed by using the FDO geometry operations instead of the
> OGR which rely on GEOS.

Unfortunately, OGR Provider relies on OGR and OGR replies on GEOS.
This chain is not replaceable with anything else.

Cheers
-- 
Mateusz Loskot
http://mateusz.loskot.net