It looks like you have a send pipeline inside your Orchestration project that is used on a send port. You need to change that back to Pass Through or Xml before you can un-deploy. This tool can help: http://www.biztalkgurus.com/Tools/Development-Helper-Tool.html
It would probably be best to separate your items into 3 projects: Orchestrations, Pipelines, and Maps/Schema.
Hope this helps.