Remove old travis badge
-TRAPpy [![Build Status](https://travis-ci.org/ARM-software/trappy.svg?branch=master)](https://travis-ci.org/ARM-software/trappy) [![Version](https://img.shields.io/pypi/v/trappy.svg)](https://pypi.python.org/pypi/trappy)
+TRAPpy [![Version](https://img.shields.io/pypi/v/trappy.svg)](https://pypi.python.org/pypi/trappy)
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TRAPpy (Trace Analysis and Plotting in Python) is a visualization tool to help
