vorbisgain: dropped unmaintained port

vorbisgain/.footprint

@@ -1,7 +0,0 @@
-drwxr-xr-x	root/root	usr/
-drwxr-xr-x	root/root	usr/bin/
--rwxr-xr-x	root/root	usr/bin/vorbisgain
-drwxr-xr-x	root/root	usr/share/
-drwxr-xr-x	root/root	usr/share/man/
-drwxr-xr-x	root/root	usr/share/man/man1/
--rw-r--r--	root/root	usr/share/man/man1/vorbisgain.1.gz

vorbisgain/.signature

@@ -1,5 +0,0 @@
-untrusted comment: verify with /etc/ports/contrib.pub
-RWSagIOpLGJF3wi6ZSdsiseXDb2jc7wjSu553hhCxK79kNG9Kqa3CNrrOxEn7Ea2YPhLzcdAtO35Y3pRTzIHFWTtRoDwohnxggw=
-SHA256 (Pkgfile) = 0ad792855f280dbf3f7054d31e35be6fefc2d93fa583917ebeb72b04aef5df57
-SHA256 (.footprint) = 9283df8b04b6e28f85d5ea132a5fcabbe6d1492bf66884c177817cfc11a610d2
-SHA256 (vorbisgain-0.37.tar.gz) = dd6db051cad972bcac25d47b4a9e40e217bb548a1f16328eddbb4e66613530ec

vorbisgain/Pkgfile

@@ -1,20 +0,0 @@
-# Description: Computes replaygain information for Ogg Vorbis files.
-# URL: https://sjeng.org/vorbisgain.html
-# Maintainer: unmaintained
-# Depends on: libvorbis
-
-name=vorbisgain
-version=0.37
-release=2
-source=(https://sjeng.org/ftp/vorbis/$name-$version.tar.gz)
-
-build() {
-  cd $name-$version
-
-  /bin/sh configure \
-    --prefix=/usr \
-    --mandir=/usr/share/man
-
-  make
-  make DESTDIR=$PKG install
-}