textproc/rubygem-autoprefixer-rails1020: Remove obsoleted port

Use textproc/rubygem-autoprefixer-rails instead.

textproc/rubygem-autoprefixer-rails1020/Makefile

-# Created by: Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org>
-
-PORTNAME=	autoprefixer-rails
-PORTVERSION=	10.2.0.0
-CATEGORIES=	textproc ruby
-MASTER_SITES=	RG
-PKGNAMESUFFIX=	1020
-
-MAINTAINER=	sunpoet@FreeBSD.org
-COMMENT=	Parse CSS and add vendor prefixes to CSS rules
-
-LICENSE=	MIT
-LICENSE_FILE=	${WRKSRC}/LICENSE
-
-RUN_DEPENDS=	rubygem-execjs>=0:devel/rubygem-execjs
-
-USES=		gem
-USE_RUBY=	yes
-
-NO_ARCH=	yes
-
-PORTSCOUT=	limit:^10\.2\.0\.
-
-.include <bsd.port.mk>

textproc/rubygem-autoprefixer-rails1020/distinfo

-TIMESTAMP = 1620405345
-SHA256 (rubygem/autoprefixer-rails-10.2.0.0.gem) = 9e9f2da4d4d53f96033039ab6d16da60f1197f52c802c94f3fa25ac0bb06325d
-SIZE (rubygem/autoprefixer-rails-10.2.0.0.gem) = 671232

textproc/rubygem-autoprefixer-rails1020/pkg-descr

-Autoprefixer is a tool to parse CSS and add vendor prefixes to CSS rules using
-values from the Can I Use. This gem provides Ruby and Ruby on Rails integration
-with this JavaScript tool.
-
-WWW: https://github.com/ai/autoprefixer-rails