* Makefile.in: Remove dependancies for 29k-share/dfe/yank.o and

* Makefile.in:  Remove dependancies for 29k-share/dfe/yank.o and
29k-share/dfe/mini2udi.o.
* config/a29k-udi.mt:  Remove yank.o and mini2udi.o.
* alldeps.mak, depend:  Update to deal with removal of
aforementioned files.
* remote-udi.c:  Major cleanups.  Clean up udi_open and drop
requirement for useless 'program' argument.  Clean up
udi_create_inferior, and udi_load to call common download()
routine.  Create download routine to load remote hosts directly
(with the help of BFD) so that we don't need yank.c and
mini2udi.c.
Fix udi_detach to call UDIDisconnect with
the right arguments.  Clean up udi_resume, don't assign tip_error
twice.  Clean up udi_wait, straighten out status codes.  Make
udi_kill really work.