Remove all of the extra dependencies
Remove all of the extra dependencies

We can now use the main RDO delorean for all dependencies. As such
this patch removes them from the rdo.yml file. Also, implements
the change from 'spec-branch' to 'distro-branch'.

Change-Id: I8236ee1d454c6251d5fbb08c034ea3b8bfea153c

rdo-management/rdoinfo