Merge pull request #87 from matplotlib/doc-remove_travis

DOC: remove travis shield

Author: timhoffm

README.rst

@@ -6,8 +6,6 @@
 .. |Supported Python versions| image:: https://img.shields.io/pypi/pyversions/cycler.svg
 .. _Supported Python versions: https://pypi.python.org/pypi/cycler
 
-.. |Travis| image:: https://travis-ci.org/matplotlib/cycler.svg?branch=master
-.. _Travis: https://travis-ci.org/matplotlib/cycler
 
 .. |Codecov| image:: https://codecov.io/github/matplotlib/cycler/badge.svg?branch=master&service=github
 .. _Codecov: https://codecov.io/github/matplotlib/cycler?branch=master