[VOL-5567] Upgrade protos and remove deprecated dependencies

Change-Id: I61605ee294a3c5abe65ecf94a0fe647c6e3b8479
Signed-off-by: bseeniva <balaji.seenivasan@radisys.com>
diff --git a/VERSION b/VERSION
index 6ee1bd8..7721732 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.6.19
+4.6.20