Revert "Move pkt-in/out kafka topic deletion into openolt_packet"

This reverts commit d0319884921b9800b4c783b683fa7fe474997a5d.

Change-Id: I7efd36211adda17c7bdeca867b4fb6733b929325
diff --git a/voltha/adapters/openolt/openolt_packet.py b/voltha/adapters/openolt/openolt_packet.py
index 7c3c5f1..318456e 100644
--- a/voltha/adapters/openolt/openolt_packet.py
+++ b/voltha/adapters/openolt/openolt_packet.py
@@ -28,7 +28,6 @@
 from voltha.core.flow_decomposer import OUTPUT
 from voltha.protos.device_pb2 import Port
 from voltha.adapters.openolt.protos import openolt_pb2
-from voltha.adapters.openolt.openolt_kafka_admin import KAdmin
 
 
 class OpenoltPacket(object):
@@ -36,8 +35,6 @@
         self.log = structlog.get_logger()
         self.device = device
 
-        self._kadmin = KAdmin()
-
         self.packet_out_thread_handle = threading.Thread(
             target=self.packet_out_thread)
         self.packet_out_thread_handle.setDaemon(True)
@@ -46,24 +43,12 @@
             target=self.packet_in_thread)
         self.packet_in_thread_handle.setDaemon(True)
 
-        self._kadmin.delete_topics([
-            'voltha.pktout-{}'.format(
-                self.device.data_model.logical_device_id)])
-        self._kadmin.delete_topics(['openolt.pktin-{}'.format(
-            self.device.host_and_port.split(':')[0])])
-
     def start(self):
         self.packet_out_thread_handle.start()
         self.packet_in_thread_handle.start()
 
     def stop(self):
-        self._kadmin.delete_topics([
-            'voltha.pktout-{}'.format(
-                self.device.data_model.logical_device_id)])
-        self._kadmin.delete_topics(['openolt.pktin-{}'.format(
-            self.device.host_and_port.split(':')[0])])
-
-        # FIXME - kill threads
+        pass
 
     def packet_out_thread(self):
         self.log.debug('openolt packet-out thread starting')