removed obsolete warning. all networks contain the edge shape and are built with keep-shape by default. Warnings about mismatched junction shape/position are given somewhere else. refs #12

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@16097 29f149b2-0c63-11e1-8f5c-a347f6a9acd0