README.md: remove broken maven central badge

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/weaver/trunk@1804803 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/README.md b/README.md
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@@ -44,7 +44,6 @@
 ===================

 

 [![Build Status](https://travis-ci.org/apache/commons-weaver.svg?branch=trunk)](https://travis-ci.org/apache/commons-weaver)

-[![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.apache.commons/commons-weaver/badge.svg)](https://maven-badges.herokuapp.com/maven-central/org.apache.commons/commons-weaver/)

 

 Apache Commons Weaver provides an easy way to enhance compiled Java classes by generating ("weaving") bytecode into those classes.