git-multipush: setting GIT_DIR is now unnecessary

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Formula/git-multipush.rb

@@ -1,18 +1,16 @@
 require 'formula'
 
 class GitMultipush < Formula
-  url 'http://git-multipush.googlecode.com/files/git-multipush-2.3.tar.bz2'
   homepage 'http://code.google.com/p/git-multipush/'
+  url 'http://git-multipush.googlecode.com/files/git-multipush-2.3.tar.bz2'
   sha1 'a53f171af5e794afe9b1de6ccd9bd0661db6fd91'
+
   head 'https://github.com/gavinbeatty/git-multipush.git', :sha => 'HEAD'
 
   depends_on 'asciidoc' => :build if ARGV.build_head?
-  # Not depending on git because people might have it
-  # installed through another means
 
   def install
     if ARGV.build_head?
-      ENV['GIT_DIR'] = cached_download+'.git'
       inreplace 'make/gen-version.mk', '.git', '$(GIT_DIR)'
       system "make"
     end