Revert "bump to ruby 2.2.4"salam/ruby-21

This reverts commit 3cb10016d142c45d5b2409ecb337b1b7bc295046.

1 files changed, 0 insertions, 3 deletions

diff --git a/Gemfile b/Gemfile
index f1d3168ad8..e39a50a586 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,9 +8,6 @@ gem "chef-config", path: "chef-config" if File.exist?(File.expand_path("../chef-
 # Ensure that we can always install rake, regardless of gem groups
 gem "rake"
 
-# we can go back to mainline when https://github.com/ffi/ffi/pull/490 is merged
-gem "ffi", github: "lamont-granquist/ffi", branch: "lcg/rb_gc_guard_ptr" if RUBY_PLATFORM.downcase =~ /aix/
-
 group(:docgen) do
   gem "yard"
 end