Removes Rubinius from Travis build matrix

1. For some reason in MRI 3 the gems tagged as platform RBX in the Gemfile
   got installed anyways :/
2. The RBX-specific gems were not compatible to be installed with MRI 3
3. The RBX-3 target was allowed to fail and failed for a while as RVM was
   not even able to install that Rubinius version
4. -> Remove RBX from the build matrix solves some problems

1 files changed, 1 insertions, 8 deletions

diff --git a/Gemfile b/Gemfile
index 91fc31db..4aa4c3d7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,11 +9,4 @@ end
 
 group :profile do
   gem 'ruby-prof', :platforms => :ruby
-end
-
-platforms :rbx do
-  gem 'rubysl'
-  gem 'rubysl-test-unit'
-  gem 'racc'
-  gem 'rubinius-coverage', '~> 2.0'
-end
+end
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