viced: Tidy header includes

viced: Tidy header includes

Remove headers which are provided by libroken, and reorder header
includes so that they're a bit a more legible.

Also add a selection of headers to the list that autoconf checks for

Change-Id: Ic76bb02ff5353ceba380b78abc294251ecc66267
Reviewed-on: http://gerrit.openafs.org/4418
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>
Tested-by: Jeffrey Altman <jaltman@openafs.org>