VOL-471: clean up VOLTHA author, email

and other data in setup.py
MAINTAINER in docker/Dockerfile.* change to info@opennetworking.org

Change-Id: I0d9557086b2938673fb398170566acc64f0e9e72
diff --git a/docker/Dockerfile.netconf b/docker/Dockerfile.netconf
index 666750c..934c91f 100644
--- a/docker/Dockerfile.netconf
+++ b/docker/Dockerfile.netconf
@@ -17,9 +17,7 @@
 
 FROM ${REGISTRY}${REPOSITORY}voltha-base:${TAG}
 
-MAINTAINER Zsolt Haraszti <zharaszt@ciena.com>
-MAINTAINER Ali Al-Shabibi <ali.al-shabibi@onlab.us>
-MAINTAINER Nathan Knuth   <nathan.knuth@tibitcom.com>
+MAINTAINER Voltha Community <info@opennetworking.org>
 
 # Install protoc version 3.0.0; this is not yet the supported
 # version on xenial, so we need to "backport" it