Moved EOS dependency to stage1 image.

continuousintegration/docker/ctafrontend/cc7/buildtree-stage1-rpms/Dockerfile

@@ -84,6 +84,7 @@ RUN yum-config-manager --enable epel --setopt="epel.priority=4" \
       json-c \
       shadow-utils \
       sudo \
+      zeromq \
   && \
     yum clean all \
   && \

continuousintegration/docker/ctafrontend/cc7/buildtree-stage2-eos/Dockerfile

@@ -36,7 +36,6 @@ ADD ${BASEDIR}/etc/yum/pluginconf.d /etc/yum/pluginconf.d
 RUN yum install -y\
       eos-client \
       eos-server \
-      zeromq     \
   && \
     yum clean all \
   && \