Update GFPolygonAbstract.mm - Removing unused methods.
Update GFPolygonAbstract.mm
- Removing unused methods.

sachindeorah/geofeatures,sachindeorah/geofeatures,sachindeorah/geofeatures,sachindeorah/geofeatures,sachindeorah/geofeatures,sachindeorah/geofeatures,sachindeorah/geofeatures