remove wrong etcd-install

Author: Schmaetz

docker/postgres/Dockerfile

@@ -59,9 +59,6 @@ RUN ${PACKAGER} -y update && ${PACKAGER} -y install --nodocs --noplugins --setop
         cronie \
 		&& ${PACKAGER} -y clean all;
 
-RUN ETCDVERSION=3.5.13 \
-&& echo "https://github.com/coreos/etcd/releases/download/v${ETCDVERSION}/etcd-v${ETCDVERSION}-linux-${ARCH}.tar.gz"
-
 # install etcdctl
 RUN curl -L https://github.com/coreos/etcd/releases/download/v${ETCD_VERSION}/etcd-v${ETCD_VERSION}-linux-${ARCH}.tar.gz | tar xz -C /bin --strip=1 --wildcards --no-anchored --no-same-owner etcdctl etcd;