pccard: Remove wi(4) driver

Remove wi(4). pccard is going away, and wi only supports PC Card
devices, though it has a minor amount of glue to also support
PCI cards. However, removing the one without removing the other
is hard, so the whole driver is being removed.

Relnotes: Yes

ObsoleteFiles.inc

@@ -36,10 +36,14 @@
 #   xargs -n1 | sort | uniq -d;
 # done
 
-# 20210108: retire cmx, ng_bt3c drivers
+# 20210108: retire cmx, ng_bt3c, wi drivers
+OLD_FILES+=usr/include/dev/wi/if_wireg.h
+OLD_FILES+=usr/include/dev/wi/if_wavelan_ieee.h
+OLD_FILES+=usr/include/dev/wi/if_wivar.h
 OLD_FILES+=usr/sbin/bt3cfw
 OLD_FILES+=usr/share/man/man4/cmw.4.gz
 OLD_FILES+=usr/share/man/man4/ng_bt3c.4.gz
+OLD_FILES+=usr/share/man/man4/wi.4.gz
 OLD_FILES+=usr/share/man/man8/bt3cfw.8.gz
 
 # 20210107: retire a.out support

include/Makefile

@@ -46,7 +46,7 @@ LSUBDIRS=	cam/ata cam/mmc cam/nvme cam/scsi \
 	dev/hwpmc dev/hyperv \
 	dev/ic dev/iicbus dev/io dev/mfi dev/mmc dev/nvme \
 	dev/ofw dev/pbio dev/pci ${_dev_powermac_nvram} dev/ppbus dev/pwm \
-	dev/smbus dev/speaker dev/tcp_log dev/veriexec dev/vkbd dev/wi \
+	dev/smbus dev/speaker dev/tcp_log dev/veriexec dev/vkbd \
 	fs/devfs fs/fdescfs fs/msdosfs fs/nfs fs/nullfs \
 	fs/procfs fs/smbfs fs/udf fs/unionfs \
 	geom/cache geom/concat geom/eli geom/gate geom/journal geom/label \

share/man/man4/Makefile

@@ -580,7 +580,6 @@ MAN=	aac.4 \
 	${_vtnet.4} \
 	watchdog.4 \
 	${_wbwd.4} \
-	wi.4 \
 	witness.4 \
 	wlan.4 \
 	wlan_acl.4 \
@@ -763,7 +762,6 @@ MLINKS+=vr.4 if_vr.4
 MLINKS+=vte.4 if_vte.4
 MLINKS+=${_vtnet.4} ${_if_vtnet.4}
 MLINKS+=watchdog.4 SW_WATCHDOG.4
-MLINKS+=wi.4 if_wi.4
 MLINKS+=${_wpi.4} ${_if_wpi.4}
 MLINKS+=xl.4 if_xl.4