[gitg] Remove brew hack

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 7dec3c6f6777ebcbd9f2b47f4fdee54d67153a02
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Sun May 22 18:56:03 2016 +0200

    Remove brew hack

 osx/scripts/brew.rb |   76 ---------------------------------------------------
 osx/scripts/env     |    4 +--
 2 files changed, 1 insertions(+), 79 deletions(-)
---
diff --git a/osx/scripts/env b/osx/scripts/env
index ebcb7ac..d7e4142 100644
--- a/osx/scripts/env
+++ b/osx/scripts/env
@@ -6,15 +6,13 @@ pushd "$scripts/../../" > /dev/null
 root=$(pwd -P)
 popd > /dev/null
 
-suffix="3.19"
+suffix="3.20"
 
 d="/opt/build/gitg-$suffix"
 b="$d/install/bin/brew"
 
 lbrew="$root/osx/scripts/lbrew"
 
-export HOMEBREW_DEVELOPER=1
-export HOMEBREW_RUBY_PATH="$scripts/brew.rb"
 export HOMEBREW_CACHE="$d/caches"
 
 export PATH="$d/install/bin:$PATH"