GBOX variables not initialized for empty geometries. Ticket #2257

git-svn-id: http://svn.osgeo.org/postgis/trunk@11256 b70326c6-7e19-0410-871a-916f4a2858ee
Removed debug statements

git-svn-id: http://svn.osgeo.org/postgis/trunk@11257 b70326c6-7e19-0410-871a-916f4a2858ee