diff --git a/share/doc/usd/10.exref/Makefile b/share/doc/usd/10.exref/Makefile
deleted file mode 100644
index 8df4f7208726..000000000000
--- a/share/doc/usd/10.exref/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# $FreeBSD$
-
-SUBDIR=	exref summary 
-
-.include <bsd.subdir.mk>
-
diff --git a/share/doc/usd/10.exref/Makefile.inc b/share/doc/usd/10.exref/Makefile.inc
deleted file mode 100644
index c5c2f55a2d1f..000000000000
--- a/share/doc/usd/10.exref/Makefile.inc
+++ /dev/null
@@ -1,5 +0,0 @@
-# $FreeBSD$
-
-VOLUME=	usd/10.exref
-MACROS=	-ms
-SRCDIR=	${.CURDIR}/../../../../../contrib/nvi/docs/USD.doc/exref
diff --git a/share/doc/usd/10.exref/exref/Makefile b/share/doc/usd/10.exref/exref/Makefile
deleted file mode 100644
index 7af18f93ef38..000000000000
--- a/share/doc/usd/10.exref/exref/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# $FreeBSD$
-
-SRCS=	ex.rm
-
-.include <bsd.doc.mk>
diff --git a/share/doc/usd/10.exref/summary/Makefile b/share/doc/usd/10.exref/summary/Makefile
deleted file mode 100644
index 143333f6ea2c..000000000000
--- a/share/doc/usd/10.exref/summary/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-# $FreeBSD$
-
-DOC=		summary
-SRCS=		ex.summary
-USE_TBL=
-
-.include <bsd.doc.mk>
diff --git a/share/doc/usd/11.vitut/Makefile b/share/doc/usd/11.vitut/Makefile
deleted file mode 100644
index f412b627fa92..000000000000
--- a/share/doc/usd/11.vitut/Makefile
+++ /dev/null
@@ -1,18 +0,0 @@
-#	From: @(#)Makefile	8.1 (Berkeley) 6/8/93
-# $FreeBSD$
-
-VOLUME=		usd/11.edit
-SRCS=		edittut.ms
-MACROS=		-ms
-USE_TBL=
-SRCDIR=		${.CURDIR}/../../../../contrib/nvi/docs/USD.doc/edit
-
-# index for versatec is different from the one in edit.tut
-# because the fonts are different and entries reference page
-# rather than section numbers.  if you have a typesetter
-# you should just use the index in edit.tut, and ignore editvindex.
-
-#editvindex:
-#	${TROFF} ${MACROS} -n22 edit.vindex
-
-.include <bsd.doc.mk>
diff --git a/share/doc/usd/12.vi/Makefile b/share/doc/usd/12.vi/Makefile
deleted file mode 100644
index 7b2c080434cf..000000000000
--- a/share/doc/usd/12.vi/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# $FreeBSD$
-
-SUBDIR=	vi viapwh summary
-
-.include <bsd.subdir.mk>
-
diff --git a/share/doc/usd/12.vi/Makefile.inc b/share/doc/usd/12.vi/Makefile.inc
deleted file mode 100644
index 42d417f046bf..000000000000
--- a/share/doc/usd/12.vi/Makefile.inc
+++ /dev/null
@@ -1,5 +0,0 @@
-# $FreeBSD$
-
-VOLUME=		usd/12.vi
-MACROS=		-ms
-SRCDIR=		${.CURDIR}/../../../../../contrib/nvi/docs/USD.doc/vitut
diff --git a/share/doc/usd/12.vi/summary/Makefile b/share/doc/usd/12.vi/summary/Makefile
deleted file mode 100644
index 425536dce4d6..000000000000
--- a/share/doc/usd/12.vi/summary/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-# $FreeBSD$
-
-DOC=		summary
-SRCS=		vi.summary
-USE_TBL=
-
-.include <bsd.doc.mk>
diff --git a/share/doc/usd/12.vi/vi/Makefile b/share/doc/usd/12.vi/vi/Makefile
deleted file mode 100644
index 6021b092e236..000000000000
--- a/share/doc/usd/12.vi/vi/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# $FreeBSD$
-
-SRCS=		vi.in vi.chars
-USE_TBL=
-
-.include <bsd.doc.mk>
diff --git a/share/doc/usd/12.vi/viapwh/Makefile b/share/doc/usd/12.vi/viapwh/Makefile
deleted file mode 100644
index f20582dda5aa..000000000000
--- a/share/doc/usd/12.vi/viapwh/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# $FreeBSD$
-
-DOC=	viapwh
-SRCS=	vi.apwh.ms
-
-.include <bsd.doc.mk>
diff --git a/share/doc/usd/13.viref/Makefile b/share/doc/usd/13.viref/Makefile
deleted file mode 100644
index d7bb392ef844..000000000000
--- a/share/doc/usd/13.viref/Makefile
+++ /dev/null
@@ -1,35 +0,0 @@
-#	From: @(#)Makefile	8.16 (Berkeley) 8/15/94
-# $FreeBSD$
-
-VOLUME=		usd/13.viref
-SRCS=		vi.ref-patched
-EXTRA=		ex.cmd.roff ref.so set.opt.roff vi.cmd.roff
-MACROS=		-me
-CLEANFILES=	vi.ref-patched index
-TRFLAGS=	-U		# this is to hide warnings only
-USE_SOELIM=
-USE_TBL=
-SRCDIR=		${.CURDIR}/../../../../contrib/nvi/docs/USD.doc/vi.ref
-
-vi.ref-patched: vi.ref
-	sed -e 's:^\.so index.so$$:&.\\*[.T]:' ${.ALLSRC} > ${.TARGET}
-
-PRINTERDEVICE?=	ascii
-.for _dev in ${PRINTERDEVICE}
-EXTRA+=		index.so.${_dev}
-CLEANFILES+=	index.so.${_dev}
-
-# Build index.so as a side-effect of building the paper.
-index.so.${_dev}: ${SRCS} ${EXTRA:Nindex.so.${_dev}}
-	sed -e 's:^\.so index\.so\.\\\*\[\.T\]$$::' vi.ref-patched | \
-	    ${ROFF.${_dev}} -U -z
-	sed -e 's/MINUSSIGN/-/' \
-	    -e 's/DOUBLEQUOTE/""/' \
-	    -e "s/SQUOTE/'/" \
-	    -e 's/ /__SPACE/g' < index | \
-	sort -u '-t	' -k 1,1 -k 2n | awk -f ${SRCDIR}/merge.awk | \
-	sed -e 's/__SPACE/ /g' \
-	    -e "s/^\\(['\\.]\\)/\\\\\&\\1/" > ${.TARGET}
-.endfor
-
-.include <bsd.doc.mk>
diff --git a/share/doc/usd/Makefile b/share/doc/usd/Makefile
index 5fcb6b305017..d7344aa8aa07 100644
--- a/share/doc/usd/Makefile
+++ b/share/doc/usd/Makefile
@@ -10,10 +10,6 @@ SUBDIR=	title \
 	05.dc \
 	06.bc \
 	07.mail \
-	10.exref \
-	11.vitut \
-	12.vi \
-	13.viref \
 	18.msdiffs \
 	19.memacros \
 	20.meref \