Modify Consumer Topic Logic

Modify Consumer Topic Logic

- Modify Topic Logic as changing Topics structure
- Remove consumerId value in the Topics structure
- Remove comment block in consumer codes

Change-Id: I256b6d5b18fd757957b4fbd58ebd631c2236ebf1
Signed-off-by: YounghyunJoo <yh_.joo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/10329
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Uze Choi <uzchoi@samsung.com>