Revert "Add config file for aspell installation"

This reverts commit 240cf0de.

component/aspell/buildout.cfg

-[buildout]
-parts =
-  aspell
-
-[aspell]
-recipe = hexagonit.recipe.cmmi
-url = http://ftp.gnu.org/gnu/aspell/aspell-0.60.6.1.tar.gz
-md5sum = e66a9c9af6a60dc46134fdacf6ce97d7

component/slapos/buildout.cfg

 [buildout]
 extends =
   ../../stack/shacache-client.cfg
-  ../aspell/buildout.cfg
   ../bison/buildout.cfg
   ../bzip2/buildout.cfg
   ../gdbm/buildout.cfg