Switch to using STAILQ_REMOVE_HEAD() instead of STAILQ_REMOVE_HEAD_UNTIL().
Switch to using STAILQ_REMOVE_HEAD() instead of STAILQ_REMOVE_HEAD_UNTIL().

Submitted by:	Stepan A. Baranov

This corresponds to OpenBSD rev. 1.134:

: revision 1.134
: date: 2004/05/04 16:59:31;  author: grange;  state: Exp;  lines: +10 -10
: Remove useless ``elm'' argument from the SIMPLEQ_REMOVE_HEAD macro.
: This matches our SLIST behaviour and NetBSD's SIMPLEQ as well.
:
: ok millert krw deraadt

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