VOL-1483 Update voltha-cli to use pyvoltha

Modifications done to use pyvoltha and voltha_protos libraries.

Change-Id: I2f6038fa9fce47459c68cc6e06ddc6bec3150cd6
diff --git a/python/cli/alarm_filters.py b/python/cli/alarm_filters.py
index ed2af32..57a782f 100644
--- a/python/cli/alarm_filters.py
+++ b/python/cli/alarm_filters.py
@@ -24,11 +24,9 @@
 from google.protobuf.empty_pb2 import Empty
 
 from table import print_pb_list_as_table
-from python.protos import third_party
-from python.protos import voltha_pb2
-from python.protos.events_pb2 import AlarmEventType, AlarmEventSeverity, AlarmEventCategory
+from voltha_protos import voltha_pb2
+from voltha_protos.events_pb2 import AlarmEventType, AlarmEventSeverity, AlarmEventCategory
 
-_ = third_party
 
 
 class AlarmFiltersCli(Cmd):