VOL-1451 Openonu now runs using pyvoltha completely

Remove code that now exists in the library.  Modify include paths
Update requirements to more closely reflect pyvoltha requirements.txt

Change-Id: I94c619de82d8ee14cfeb302b3b82be3a26619301
diff --git a/python/compose/system-test.yml b/python/compose/system-test.yml
index fe8a9c8..fd89e20 100644
--- a/python/compose/system-test.yml
+++ b/python/compose/system-test.yml
@@ -162,7 +162,7 @@
         max-size: "10m"
         max-file: "3"
     command: [
-      "/voltha/voltha/adapters/brcm_openomci_onu/main.py",
+      "/voltha/adapters/brcm_openomci_onu/main.py",
       "-v",
       "--name=openonu",
       "--kafka_adapter=${DOCKER_HOST_IP}:9092",