Remove eide-coding.el

This file used to:
- Remove "_" from the list of word delimiters in several major modes.
- Change Emacs Lisp indentation in order to indent the "then" statement
  with the same offset as the "else" statement.

These are personal preferences and should not be part of Emacs-IDE.

Signed-off-by: Cédric Marie <cedric.marie@openmailbox.org>