Fix a bug in pithcat introduced in 08c317fa

There was a debug print in pithcat causing problems

snf-image-host/pithcat

@@ -134,8 +134,6 @@ def main():
 
     db_uri = environ['PITHCAT_INPUT_DB'] if not options.db else options.db
 
-    print "%s" % db_uri
-
     backend = ModularBackend(None,
                              db_uri if type(url) is LocationURL else None,
                              None,