Some source-free doc of pkgs are still in TeX Live

[Karl Berry]

    http://mirrors.ctan.org/macros/latex/contrib/clrscode/clrscode.pdf
    http://mirrors.ctan.org/macros/latex/contrib/IEEEtran/IEEEtran_HOWTO.pdf

Also IEEEtran_bst_HOWTO.pdf. I removed those pdfs from TL, and wrote
both package authors.

    Are there any allowable exceptional cases that source-free docs
    would be included in TeX Live?

There are no intentional exceptions. --thanks, karl.