Remove old em module.

scikits/learn/em/Changelog

scikits/learn/em/LICENSE.txt

scikits/learn/em/TODO

scikits/learn/em/__init__.py

scikits/learn/em/_c_densities.py

scikits/learn/em/densities.py

scikits/learn/em/densities2.py

scikits/learn/em/doc/Makefile

scikits/learn/em/doc/base.tex

scikits/learn/em/doc/examples/demo1.py

scikits/learn/em/doc/examples/demo2.py

scikits/learn/em/doc/tutorial.pdf

scikits/learn/em/doc/user.tex

scikits/learn/em/gauss_mix.py

scikits/learn/em/gmm_em.py

scikits/learn/em/info.py

scikits/learn/em/misc.py

scikits/learn/em/online_em.py

scikits/learn/em/profile_data/blop.c

scikits/learn/em/profile_data/gden.m