Remove emacs directory

* The packages are **extremely** old and likely not to be compatible with the 24+ release (which was released in June 2012). 
* emacs 24 includes package.el and ELPA, which makes the operation of getting emacs extension pretty much trivial and painless. 
* python.el is now shipped with GNU emacs by default as opposed to python-mode.

I suggest we write a small development setup guide if really needed.