crypto: Initial cleanups for sha1-compress.c
crypto: Initial cleanups for sha1-compress.c

- Remove debug code

- Remove obsolete comments

- Update/genericize header block

cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr