graphics/waifu2x-converter-cpp: drop misleading manpage

The manpage only quotes --help and mentions CUDA, unsupported on FreeBSD.

graphics/waifu2x-converter-cpp/Makefile

@@ -3,11 +3,8 @@
 PORTNAME=	waifu2x-converter-cpp
 DISTVERSION=	1.0.0-410
 DISTVERSIONSUFFIX=	-g5e5ac35
-PORTREVISION=	4
+PORTREVISION=	5
 CATEGORIES=	graphics
-MASTER_SITES=	https://aur.archlinux.org/cgit/aur.git/plain/${PORTNAME:C/-.*//}.1.gz?h=${PORTNAME:C/-.*//}-git&id=5c150a5&/:manpage
-DISTFILES=	${PORTNAME:C/-.*//}.1.gz:manpage
-EXTRACT_ONLY=	${DISTFILES:N*\:manpage:C/:.*//}
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Scale and denoise images using convolutional neural networks
@@ -35,7 +32,6 @@ LDFLAGS+=	-Wl,--as-needed # avoid overlinking (opencv deps)
 TEST_TARGET=	test ARGS="-V"
 USE_LDCONFIG=	yes
 PLIST_FILES=	bin/${PORTNAME} \
-		man/man1/${PORTNAME}.1.gz \
 		include/w2xconv.h \
 		lib/libw2xc.so
 PORTDATA=	*
@@ -47,23 +43,10 @@ OPTIONS_DEFAULT=SIMD
 DOCS_CMAKE_ON=	-DINSTALL_DOCS=on
 SIMD_CMAKE_OFF=	-DARMOPT=off -DX86OPT=off
 
-post-extract:
-	@${GZCAT} ${_DISTDIR}/${DISTFILES:M*\:manpage:C/:.*//} \
-		>${WRKDIR}/${PORTNAME}.1
-
 post-patch:
 	@${REINPLACE_CMD} -e '/Darwin/,/FLAGS_RELEASE/d' \
 		-e 's,".*\(-m[^[:space:]]*\).*","\1",' \
 		-e 's/$${TS}/${DISTVERSIONFULL}/' \
 		${WRKSRC}/CMakeLists.txt
-# Undo AUR rename and use version from |git describe --tags|
-	@${REINPLACE_CMD} -e '/AUTHORS/,$$! { /\.B mai/! \
-			s,${PORTNAME:C/-.*//},${PORTNAME},; }' \
-		-e '1s,\(version\) [^"]*,\1 ${DISTVERSIONFULL},' \
-		${WRKDIR}/${PORTNAME}.1
-
-post-install:
-	${INSTALL_MAN} ${WRKDIR}/${PORTNAME}.1 \
-		${STAGEDIR}${MAN1PREFIX}/man/man1
 
 .include <bsd.port.mk>