Swig comes with OS X all versions

Formula/swig.rb

@@ -1,19 +0,0 @@
-require 'formula'
-
-class Swig <Formula
-  url 'http://downloads.sourceforge.net/swig/swig-1.3.40.tar.gz'
-  homepage 'http://www.swig.org/'
-  md5 '2df766c9e03e02811b1ab4bba1c7b9cc'
-
-  def patches
-    DATA
-  end
-
-  def install
-    system "./configure", "--prefix=#{prefix}", "--disable-debug", "--disable-dependency-tracking",
-                         # turns prefix/share/swig/1.3.40 into prefix/share/swig
-                         # as versioned dirs are redundant with Homebrew
-                          "--with-swiglibdir=#{prefix}/share/swig"
-    system "make install"
-  end
-end