edit travis to remove image stuff

Author: andrewgiessel

.travis.yml

@@ -16,9 +16,7 @@ before_install:
     - conda update --yes conda
     - conda info -a
     - travis_retry conda create -n test $CONDA pip jinja2 pandas mock six nose
-    - travis_retry conda install --channel https://conda.anaconda.org/pyzo freeimage
     - source activate test
-    - travis_retry pip install vincent imageio
 
 install:
     - python setup.py install