Gemfile in cutting_edge-0.1 vs Gemfile in cutting_edge-0.2

@@ -1,10 +1,8 @@
 source 'https://rubygems.org'
 
 gem 'redis', require: false
 
-gem 'hashdiff'
-
 group :development do
   gem 'rspec', '~> 3.9'
   gem 'simplecov'
   gem 'rack-test'
 end
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