debian: Fixup removal of .pid and .vty files

debian: Fixup removal of .pid and .vty files

The <daemon>.pid and <daemon>.vty files were not being
removed on shutdown.  This was causing issues w/
logrotate becaue it depends on pid files being correct
about what is running in order to not error out.

Fixed some additional debugs accidently left in the quagga
script.

Ticket: CM-9293
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>