As previously announced, remove math/ruby-math3d. It has been broken

for several months with no sign of a fix.

math/Makefile

@@ -209,7 +209,6 @@
     SUBDIR += ruby-gmp
     SUBDIR += ruby-gnuplot
     SUBDIR += ruby-gsl
-    SUBDIR += ruby-math3d
     SUBDIR += ruby-narray
     SUBDIR += ruby-narray_miss
     SUBDIR += ruby-netcdf

math/ruby-math3d/Makefile

@@ -1,37 +0,0 @@
-# New ports collection makefile for:	Ruby/Math3d
-# Date created:		8 May 2001
-# Whom:			Akinori MUSHA aka knu <knu@idaemons.org>
-#
-# $FreeBSD$
-#
-
-PORTNAME=	math3d
-PORTVERSION=	0.04
-CATEGORIES=	math ruby
-MASTER_SITES=	http://www2.giganet.net/~yoshi/
-PKGNAMEPREFIX=	${RUBY_PKGNAMEPREFIX}
-DIST_SUBDIR=	ruby
-
-MAINTAINER=	knu@FreeBSD.org
-COMMENT=	A Ruby library for mathematics for 3D graphics
-
-USE_RUBY=	yes
-USE_RUBY_EXTCONF=	yes
-
-INSTALL_TARGET=	site-install
-
-BROKEN=		"Does not compile"
-EXPIRATION_DATE=2004-08-20
-DEPRECATED=	${BROKEN}
-
-pre-patch:
-	cd ${WRKSRC}; ${RUBY} -i -pe 'sub(/\r/, "")' *.[ch]
-
-post-install:
-.if !defined(NOPORTDOCS)
-	${MKDIR} ${RUBY_MODDOCDIR}/ja
-	${INSTALL_DATA} ${WRKSRC}/manual.en ${RUBY_MODDOCDIR}/
-	${INSTALL_DATA} ${WRKSRC}/manual.jis ${RUBY_MODDOCDIR}/ja/
-.endif
-
-.include <bsd.port.mk>

math/ruby-math3d/distinfo

@@ -1,2 +0,0 @@
-MD5 (ruby/math3d-0.04.tar.gz) = 94556be8b934deb961170bb49936ae67
-SIZE (ruby/math3d-0.04.tar.gz) = 42632

math/ruby-math3d/pkg-descr

@@ -1,5 +0,0 @@
-This is a Ruby library for mathematics for 3D graphics, which includes
-Vector/Matrix4x4/LineSeg/Plane/Bound and so on.
-
-Author:	Yoshiyuki Kusano <yoshi@giganet.net>
-WWW:	http://www.ruby-lang.org/raa/list.rhtml?name=math3d

math/ruby-math3d/pkg-plist

@@ -1,5 +0,0 @@
-%%RUBY_SITEARCHLIBDIR%%/math3d.so
-%%PORTDOCS%%%%RUBY_MODDOCDIR%%/manual.en
-%%PORTDOCS%%%%RUBY_MODDOCDIR%%/ja/manual.jis
-%%PORTDOCS%%@dirrm %%RUBY_MODDOCDIR%%/ja
-%%PORTDOCS%%@dirrm %%RUBY_MODDOCDIR%%