Gemfile in hash_flatten-0.3.0 vs Gemfile in hash_flatten-1.0.0

@@ -1,6 +1,4 @@
-source "https://rubygems.org"
-
-git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+source 'https://rubygems.org'
 
 # Specify your gem's dependencies in hash_flatten.gemspec
 gemspec