Remove classloader instrumentation

Author: Andrew Kent

settings.gradle

@@ -13,7 +13,6 @@ include ':dd-java-agent:instrumentation:akka-http-10.0'
 include ':dd-java-agent:instrumentation:apache-httpclient-4.3'
 include ':dd-java-agent:instrumentation:aws-java-sdk-1.11.0'
 include ':dd-java-agent:instrumentation:aws-java-sdk-1.11.106'
-include ':dd-java-agent:instrumentation:classloaders'
 include ':dd-java-agent:instrumentation:datastax-cassandra-3.2'
 include ':dd-java-agent:instrumentation:elasticsearch-rest-5'
 include ':dd-java-agent:instrumentation:elasticsearch-transport-2'