devel/simavr: Skip building docs

texlive upgrade to 20210325 broke the build of the simavr manual. As
upstream dist conatins the pre-built pdf files, just install them
instead.

PR:	262119

devel/simavr/Makefile

@@ -3,7 +3,7 @@
 PORTNAME=	simavr
 PORTVERSION=	1.7
 DISTVERSIONPREFIX=	v
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel emulators
 
 MAINTAINER=	felix@palmen-it.de
@@ -33,9 +33,6 @@ MAKE_ENV=	SIMAVR_VERSION=v${PORTVERSION}
 
 OPTIONS_DEFINE=		DOCS EXAMPLES
 
-DOCS_ALL_TARGET=	doc
-DOCS_USE=		tex=latex:build tex=pdftex:build tex=texmf:build
-
 AVR_STRIP_CMD?=	avr-strip
 DUMPMACHINE=	${CC} -dumpmachine
 OBJDIRNAME=	obj-$$(${DUMPMACHINE})