Do we still need to remove size method from Ruby's Symbol class or is there a way to contain this removal to codebases running Ruby 1.9?

https://github.com/mongodb/mongoid/blob/548f9c5744bac5d151e6f32260054db5a87f59d6/lib/mongoid/extensions.rb#L9

Came across this issue while trying to call size on a symbol in the rails console.

Ruby 2.4 | Rails 5.1