Remove Travis badge and build section

Users of Metafacture do not need to know about the CI used by
Metafacture. It should not be the first section in the main readme file.

Author: cboehme

README.md

@@ -6,12 +6,6 @@ Metafacture consists of a core library and a number of plugin packages and satel
 
 Originally, Metafacture was developed as part of the [Culturegraph](http://culturegraph.org) platform but its now used by others, too: [see who uses Metafacture](https://github.com/culturegraph/metafacture-core/wiki/Who-uses-Metafacture).
 
-# Build
-
-[![Build Status](https://secure.travis-ci.org/culturegraph/metafacture-core.svg?branch=master)](https://travis-ci.org/culturegraph/metafacture-core/)
-
-See the [.travis.yml](./.travis.yml) file for details on the CI config used by Travis.
-
 # Getting started
 
 You can use Metafacture either as a stand-alone application or as a Java library in your own projects.