K 10
svn:author
V 6
brooks
K 8
svn:date
V 27
2018-02-20T18:08:57.890935Z
K 7
svn:log
V 479
Reduce duplication in dynamic syscall registration code.

Remove the unused syscall_(de)register() functions in favor of the
better documented and easier to use syscall_helper_(un)register(9)
functions.

The default and freebsd32 versions differed in which array of struct
sysents they used and a few missing updates to the 32-bit code as
features were added to the main code.

Reviewed by:	cem
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14337

END