Gemfile in groupify-0.3.0 vs Gemfile in groupify-0.3.1

@@ -1,8 +1,4 @@
 source :rubygems
 
 # Specify your gem's dependencies in groupify.gemspec
 gemspec
-
-platform :ruby, :mswin, :mingw do
-  gem "bson_ext", "~> 1.6.4"
-end
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