Removed unnecessary dependency for development

hsbt · hsbt · commit 902300cfdb9a · 2026-01-29T16:05:09.000+09:00
diff --git a/Gemfile b/Gemfile
@@ -3,9 +3,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :development do
-  gem "bundler"
   gem "rake"
   gem "rake-compiler"
   gem "rdoc"
-  gem "psych", "< 5.0"  # psych 5.0+ requires Ruby 2.7+
 end
