timer(4/sparc64): remove driver

The timer(4/sparc64) driver was effectively disabled during the
previous release.  Nobody has come forward asking for it to be adapted
to work with the new clockintr framework, so it's time to remove the
driver from the tree.

As of today, if you want to run OpenBSD on SPARC v9 hardware, that
hardware needs to sport either %tick and %tick_compare (%asr23), or
%stick (%asr24) and %stick_compare (%asr25).

All Sun/Oracle SPARC v9 hardware meets these conditions, from the
UltraSPARC I onward.

Most HAL/Fujitsu SPARC v9 hardware meets these conditions, from the
SPARC64 III onward.  The only HAL/Fujitsu hardware that might not have
%tick_compare are the HAL SPARC64 I and SPARC64 II, for which I can
find no documentation.  However, those processors are currently
unsupported by OpenBSD for other reasons, so their support status is
unchanged by the removal of this driver.

With help from miod@.

Link: https://marc.info/?l=openbsd-tech&m=167898759928206&w=2

"after unlock" deraadt@, ok mlarkin@ miod@

2 files changed, 2 insertions, 45 deletions

diff --git a/share/man/man4/man4.sparc64/Makefile b/share/man/man4/man4.sparc64/Makefile
index a2d0b0ec7d9..8ab3b2a6aa7 100644
--- a/share/man/man4/man4.sparc64/Makefile
+++ b/share/man/man4/man4.sparc64/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.82 2019/04/25 16:47:56 denis Exp $
+#	$OpenBSD: Makefile,v 1.83 2023/04/28 18:27:55 cheloha Exp $
 
 MAN=	agten.4 apio.4 asio.4 audioce.4 audiocs.4 autoconf.4 auxio.4 \
 	bbc.4 be.4 beeper.4 bpp.4 bwtwo.4 cbus.4 central.4 cgsix.4 cgthree.4 \
@@ -9,7 +9,7 @@ MAN=	agten.4 apio.4 asio.4 audioce.4 audiocs.4 autoconf.4 auxio.4 \
 	pcons.4 pmc.4 power.4 ppm.4 prtc.4 psycho.4 pyro.4 qe.4 qec.4 \
 	radeonfb.4 raptor.4 rfx.4 \
 	sab.4 sbbc.4 schizo.4 spif.4 ssm.4 \
-	tda.4 timer.4 tvtwo.4 upa.4 uperf.4 \
+	tda.4 tvtwo.4 upa.4 uperf.4 \
 	vbus.4 vcc.4 vcons.4 vds.4 vdsk.4 vigra.4 vldc.4 vnet.4 vpci.4 \
 	vrng.4 vrtc.4 vsw.4 \
 	xbox.4 zs.4 zx.4
diff --git a/share/man/man4/man4.sparc64/timer.4 b/share/man/man4/man4.sparc64/timer.4
deleted file mode 100644
index 900161b2d4e..00000000000
--- a/share/man/man4/man4.sparc64/timer.4
+++ /dev/null
@@ -1,43 +0,0 @@
-.\"     $OpenBSD: timer.4,v 1.2 2007/05/31 19:19:57 jmc Exp $
-.\"
-.\" Copyright (c) 2004 Jason L. Wright (jason@thought.net)
-.\" All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-.\" DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
-.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-.\" POSSIBILITY OF SUCH DAMAGE.
-.\"
-.Dd $Mdocdate: May 31 2007 $
-.Dt TIMER 4 sparc64
-.Os
-.Sh NAME
-.Nm timer
-.Nd SPARC64 Timer
-.Sh SYNOPSIS
-.Cd "timer* at mainbus0"
-.Sh DESCRIPTION
-The
-.Nm
-device provides support for the onboard timer on SBus based
-UltraSPARC machines.
-The timers are used to control various time services in the
-kernel and are not user accessible.
-.Sh SEE ALSO
-.Xr intro 4