[IOT-1400] Remove multicast presence node list in client side.

[IOT-1400] Remove multicast presence node list in client side.

MCPresenceNode(multicast presence list) never remove.
it causes a big memory leak.
and since checking sequence number not required.
it is better to remove for simple stack logic.

Change-Id: I000772b12c88b30bd771fc759ac2ffaacedd0cc0
Signed-off-by: jihwan.seo <jihwan.seo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/13139
Reviewed-by: daeken kwon <daeken.kwon@samsung.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jaehong Jo <jaehong.jo@samsung.com>
Reviewed-by: Ziran Sun <ziran.sun@samsung.com>