Delete not needed travis.yml file

Change-Id: Id416444e987f7c81d28de628c463970a197aa4d2

.travis.yml

@@ -1,22 +0,0 @@
-language: python
-python: 2.7
-sudo: false
-env:
-  - PIP_ACCEL_CACHE=$HOME/.pip-accel-cache SOLAR_CONFIG=$TRAVIS_BUILD_DIR/.config SOLAR_SOLAR_DB_HOST=localhost
-cache:
-    directories:
-        - $HOME/.pip-accel-cache
-install:
-    - pip install pip-accel
-    - pip-accel install coveralls
-    - pip-accel install -r test-requirements.txt
-script:
-    - tox -e pep8 && py.test --cov=solar -s solar
-services:
-    - riak
-after_success:
-    coveralls
-addons:
-  apt:
-    packages:
-    - libluajit-5.1-dev