remove unused packet_indication()

Change-Id: I377414421222af670a4c68ae04bea7de3b2edce5
diff --git a/voltha/adapters/openolt/openolt_device.py b/voltha/adapters/openolt/openolt_device.py
index 52cecb4..a3cd442 100644
--- a/voltha/adapters/openolt/openolt_device.py
+++ b/voltha/adapters/openolt/openolt_device.py
@@ -273,20 +273,6 @@
                                     omci_indication.onu_id,
                                     omci_indication.pkt)
 
-    def packet_indication(self, pkt_indication):
-        self.log.debug("packet indication",
-                       intf_type=pkt_indication.intf_type,
-                       intf_id=pkt_indication.intf_id,
-                       port_no=pkt_indication.port_no,
-                       cookie=pkt_indication.cookie,
-                       gemport_id=pkt_indication.gemport_id,
-                       flow_id=pkt_indication.flow_id)
-        self.data_model.onu_send_packet_in(pkt_indication.intf_type,
-                                           pkt_indication.intf_id,
-                                           pkt_indication.port_no,
-                                           pkt_indication.gemport_id,
-                                           pkt_indication.pkt)
-
     def packet_out(self, egress_port, msg):
         pkt = Ether(msg)
         self.log.debug('packet out', egress_port=egress_port,