While getting mad with servo.c (which makes little sense to me), and
continuously following the long unseless indented stanza of
pp_update_delay() I finally decided to kill it.  This kills another
similar situation, but each of these changes makes no effect on the
program flow, only simplifies code as written.

You can diff with "-w" to verify I don't change code.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>