[rubygems/rubygems] Remove part of comment that fell out of date
https://github.com/rubygems/rubygems/commit/272ac23aa8
[rubygems/rubygems] Remove part of comment that fell out of date
https://github.com/rubygems/rubygems/commit/272ac23aa8