[rubygems/rubygems] Remove unnecessary mixin inclusion
It's already included by the parent.
https://github.com/rubygems/rubygems/commit/3ffe389c44
[rubygems/rubygems] Remove unnecessary mixin inclusion
It's already included by the parent.
https://github.com/rubygems/rubygems/commit/3ffe389c44