Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

hyperv: Build and install where supported

Remove the hard-coded dependency on HYPERV being only x86. Instead, 100%
rely on MK_HYPERV. It's always right (since it's marked BROKEN (so set
to "no") on architectures we don't support).

Sponsored by: Netflix
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D38306

Remove kgmon(8)

Follow-up to the removal of the mcov from kernel.

Noted by: mckusick
Reviewed by: mckusick
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D29563

ndis(4): remove as previous announced

nids(4) was a clever idea in the early 2000's when the market was
flooded with 10/100 NICs with Windows-only drivers, but that hasn't been
the case for ages and the driver has had no meaningful maintenance in
ages. It only supports Windows-XP era drivers.

Also remove:
- ndis support from wpa_supplicant
- ndiscvt(8)

Reviewed By: emaste, bcr (manpages)
Differential Revision: https://reviews.freebsd.org/D27609

Remove kgzip and kgzldr.

PR: 183666, 229763
Submitted by: Yoshihiro Ota <ota at j.email.ne.jp>
Differential Revision: https://reviews.freebsd.org/D20248

Remove obsolete asf(8)

kgdb now handles kernel module state internally, so the asf tool serves
no purpose.

PR: 229046
Reviewed by: brooks
Relnotes: yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D15827

Remove pc98 support completely.
I thank all developers and contributors for pc98.

Relnotes: yes

Remove the wl(4) driver and wlconfig(8) utility.

The wl(4) driver supports pre-802.11 PCCard wireless adapters that
are slower than 802.11b. They do not work with any of the 802.11
framework and the driver hasn't been reported to actually work in a
long time.

Relnotes: yes

Remove the si(4) driver and sicontrol(8) for Specialix serial cards.

The si(4) driver supported multiport serial adapters for ISA, EISA, and
PCI buses. This driver does not use bus_space, instead it depends on
direct use of the pointer returned by rman_get_virtual(). It is also
still locked by Giant and calls for patch testing to convert it to use
bus_space were unanswered.

Relnotes: yes

Make the building of libsmb and mount_smbfs unconditional, now that r292552
has eliminated alignment and endian problems that were making it fail on
some platforms.

PR: 180438
PR: 189415

Followup to r275144 -- don't traverse down usr.sbin/zzz if ACPI/APM are disabled

Make src.opts.mk the source of truth for whether or not to build hyperv

In particular, according to several Makefiles it can only be built/run on
amd64 and i386/i386. It isn't supported on i386/pc98

Disable hyperv on pc98.

Import HyperV Key-Value Pair (KVP) driver and daemon code by Microsoft,
many thanks for their continued support of FreeBSD.

While I'm there, also implement a new build knob, WITHOUT_HYPERV to
disable building and installing of the HyperV utilities when necessary.

The HyperV utilities are only built for i386 and amd64 targets.

This is a stable/10 candidate for inclusion with 10.1-RELEASE.

Submitted by: Wei Hu <weh microsoft com>
MFC after: 1 week

- Trim an unused and bogus Makefile for mount_smbfs.
- Reconnect with some minor modifications, in particular now selsocket()
internals are adapted to use sbintime units after recent'ish calloutng
switch.

Replace sade the extracted piece of sysinstall with sade the extracted
piece of bsdinstall (although this time with a symlink instead of duplicated
source code).

Discussed on: freebsd-geom
MFC after: 3 months

Disconnect non-MPSAFE SMBFS from the build in preparation for dropping
GIANT from VFS. In addition, disconnect also netsmb, which is a base
requirement for SMBFS.

In the while SMBFS regular users can use FUSE interface and smbnetfs
port to work with their SMBFS partitions.

Also, there are ongoing efforts by vendor to support in-kernel smbfs,
so there are good chances that it will get relinked once properly locked.

This is not targeted for MFC.

Disconnect non-MPSAFE NWFS from the build in preparation for dropping
GIANT from VFS. In addition, disconnect also netncp, which is a base
requirement for NWFS.

In the possibility of a future maintenance of the code and later
readd to the FreeBSD base, maybe we should think about a better location
for netncp. I'm not entirely sure the / top location is actually right,
however I will let network people to comment on that more specifically.

This is not targeted for MFC.

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Merge from tbemd: use Makefile.arch to control building.

Reviewed by: arch@ (many times, no objection)