Use original repository for smartchr recipe

It seems this recipe uses emacsmirror from the very beginning.
We should use the original repository if it is maintained.
See: 6f8126acb3257da303debf27e978c9823234e76e
ruby-mode should use the builtin version on 24.x
Merge pull request #1026 from tkf/smartchr

Use original repository for smartchr recipe
Merge pull request #1030 from shellbj/ruby-mode

ruby-mode should use the builtin version on 24.x