Delete or hide unused project fields

[jaragunde]

Projects currently have two fields that were carried from the 1.x series but are currently never used. They are "schedule" and "type".

We should remove these fields from the project management screen and the project evaluation report. Also remove them from the web services layer and data model (DAO, VO). Finally, we could just leave them in the DB, like we did with other fields, until we decide to remove all the unused DB fields at a later point.