Remove gst-rtsp

gst-rtsp was not ported to the gstreamer 1.0.x series. It has been
moved to homebrew-versions along with the rest of of the 0.10.x
packages.

Formula/gst-rtsp.rb

@@ -1,25 +0,0 @@
-require 'formula'
-
-class GstRtsp < Formula
-  homepage 'http://gstreamer.freedesktop.org/'
-  url 'http://gstreamer.freedesktop.org/src/gst-rtsp/gst-rtsp-0.10.8.tar.bz2'
-  sha256 '9915887cf8515bda87462c69738646afb715b597613edc7340477ccab63a6617'
-
-  depends_on :automake
-  depends_on :libtool
-
-  depends_on 'pkg-config' => :build
-  depends_on 'gettext'
-  depends_on 'gst-plugins-base'
-
-  def install
-    # Compatibility with Automake 1.13 and newer.
-    inreplace 'configure.ac', 'AM_CONFIG_HEADER', 'AC_CONFIG_HEADERS'
-    system "./autogen.sh", "--disable-debug", "--disable-dependency-tracking",
-                           "--prefix=#{prefix}",
-                           "--disable-schemas-install",
-                           "--disable-gtk-doc"
-    system "make"
-    system "make install"
-  end
-end