Ah, I see what happened.  You deleted a file that is under source control -- the `vendor/rspec-1` file that git uses as a placeholder for the submodule.  Users won't ever get this warning (unless they also `rm -rf vendor/rspec-1`) but they're on their own if they are deleting files that are under source control...they could get any number of errors/warnings for doing that.

So yeah, please do remove this section as end users won't ever see this.