Remove Conda from yml

Author: charleskawczynski

.travis.yml

@@ -25,10 +25,6 @@ env:
     global:
     - PYTHON=conda
 
-before_install:
- - julia -e 'using Pkg; Pkg.add("Conda")'
- - julia -e 'using Conda; Conda.add("scikit-learn")'
-
 before_script:
   - |
     if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then