Remove unneeded not_supported_on guard
Remove unneeded not_supported_on guard

eregon/rubyspec,sgarciac/spec,nobu/rubyspec,ruby/rubyspec,sgarciac/spec,eregon/rubyspec,eregon/rubyspec,nobu/rubyspec,ruby/spec,sgarciac/spec,ruby/spec,ruby/spec,nobu/rubyspec,ruby/rubyspec