Drop support for Rubinius

Fixes #1775 (Drop support for Rubinius)

I am amazed how many hacks we've had just to support Rubinius. It feels good to
be able to remove them and reduce the complexity of the codebase.

1 files changed, 0 insertions, 6 deletions

diff --git a/Gemfile b/Gemfile
index d0109dee..50c82f39 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,9 +22,3 @@ end
 group :development, :test do
   gem 'simplecov', '~> 0.8.0'
 end
-
-platform :rbx do
-  gem 'rubysl-singleton'
-  gem 'rubysl-prettyprint'
-  gem 'rb-readline'
-end