Remove codecov.io and travis build (#333)

* Remove codecov.io and travis build

Neither are currently used and the codecov.io badge is outdated

* Also remove another travis reference

Author: axelson

.travis.yml

@@ -1,7 +1,5 @@
 # Core Scenic Library
 
-[![Codecov](https://codecov.io/gh/boydm/scenic/branch/master/graph/badge.svg)](https://codecov.io/gh/boydm/scenic)
-
 Scenic is a client application library written directly on the
 Elixir/Erlang/OTP stack. With it you can build applications that operate
 identically across all supported operating systems, including MacOS, Ubuntu,

README.md

@@ -34,9 +34,6 @@ defmodule Scenic do
   of an error.
   """
 
-  # put the travis badge here until I get travis working again - is a config issue on the travis side...
-  # [![Build Status](https://travis-ci.org/boydm/scenic.svg?branch=master)](https://travis-ci.org/boydm/scenic)
-
   use Supervisor
 
   @viewports :scenic_viewports