Revert "[emacs] Add projmake-mode for erlang"

This reverts commit 69067699725b00e6cdfec9d16e4f3f0b721b96eb.

Conflicts:
	.emacs.d/init.el
Revert "[emacs] Configure whitespace-mode to highlight long lines"

This reverts commit 70ab7de682ea1d1fcf47e0c260e5a340e3ccd9de.

Conflicts:
	.emacs.d/init.el