Merge pull request #7825 from dcbw/sdn-leave-plugins-alone

sdn: don't blow away all existing CNI plugins

roles/openshift_sdn/files/sdn.yaml

@@ -78,8 +78,7 @@ spec:
           done
 
           # Take over network functions on the node
-          rm -Rf /etc/cni/net.d/*
-          rm -Rf /host/opt/cni/bin/*
+          rm -Rf /etc/cni/net.d/80-openshift-network.conf
           cp -Rf /opt/cni/bin/* /host/opt/cni/bin/
 
           if [[ -f /etc/sysconfig/origin-node ]]; then