Removes the specified faces from the solid. 

eOk if successful or an appropriate error code in other case.

After removing specified faces, the adjacent faces will enlarge to fill the gaps. This method implements gap filling only if there is no other solution using adjacent faces. If adjacent faces can't be used, the method leaves the solid unmodified. Removing faces can cause the solid to become invalid in some cases. This method is implemented only for Spatial modeler and returns the eNotImplementedYet status for other modelers.