Revert "moving certs and keys to k8s secrets"

This reverts commit 59ffd500ea34c201fbb3edc39e64655fa8381be0.

Tested locally and does not work.  DmaaP fails to come up causing
many other pods to crash loop.

failed to start container "dmaap": Error response from daemon:
{"message":"invalid header field value "oci runtime error:
container_linux.go:247:starting container process caused
"process_linux.go:359: container init caused "rootfs_linux.go:53:
mounting "/var/lib/kubelet/pods/9ae222e0-98a9-11e7-badd-02cfc855c3b9
/volumes/kubernetes.io~secret/mykey" to rootfs "/var/lib/docker/aufs/mnt
/b92c56185f3371cb1f091679780d40797dd2c6124cd00cb8fe68da2b247363a8"
at "/var/lib/docker/aufs/mnt/.../appl/dmaapMR1/etc/keyfile" caused
"not a directory"""n""}

Issue-ID: OOM-293

Change-Id: I348ffa14718bd6e89e99f2859cf6612c10370559
Signed-off-by: Mandeep Khinda <mandeep.khinda@amdocs.com>