#2332 windows 64 EDB crasher on invalid wkb using ST_GeomFromWKB - fix by using similar logic to go ST_GeomFromEWKB and skipping intermediary call.

git-svn-id: http://svn.osgeo.org/postgis/trunk@11473 b70326c6-7e19-0410-871a-916f4a2858ee