Remove delegate usage

[fwininger]

66f1d79#r45885127

delegate is a rails method not a native ruby method and the gem does'nt have rails dependency

https://apidock.com/rails/Module/delegate

this commit introduce a bug :

$ irb -I lib/ -r ice_cube
3.0.0 :001 > IceCube::Schedule.new
3.0.0 :002 > IceCube::Schedule.new.to_s
        7: from /ice_cube/lib/ice_cube/schedule.rb:316:in `block in to_s'
        5: from <internal:/.rvm/rubies/ruby-3.0.0/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
        4: from /ice_cube/lib/ice_cube/i18n.rb:3:in `<top (required)>'
        3: from /ice_cube/lib/ice_cube/i18n.rb:4:in `<module:IceCube>'
        2: from /ice_cube/lib/ice_cube/i18n.rb:8:in `<module:I18n>'
        1: from /ice_cube/lib/ice_cube/i18n.rb:9:in `singleton class'
NoMethodError (undefined method `delegate' for #<Class:IceCube::I18n>)
Did you mean?  DelegateClass

[pacso]

@seejohnrun - as we discussed ... should we make activesupport a dependency of the gem rather than rolling back these changes?

[fwininger]

@pacso / @seejohnrun I think it's really sad to add active support as dependency for just the delegate method.

A better solution is to replace :

delegate method to: :other_class

with :

def method; other_class.method; end

[seejohnrun]

@fwininger Thanks - I think that's a reasonable approach here but I'm wondering if you could take a bit to mention why adding activesupport might be a bad idea? I've held off on adding the dependency for a long time, but it seems pretty compelling since in a lot of places we conditionally have branches for using and not using ActiveSupport. Overall, AS should be an okay dependency even for non-Rails apps to link in but wondering if we're missing something about the criticality of keeping the dependency away. Thank you!