[VOL-4518] - Stop using the direction of flow when storing OLT flows since the flowID's are unique

Change-Id: Iea66fc148c6ad299376eaf5ac0be049cd53d4eb1
diff --git a/internal/bbsim/devices/onu.go b/internal/bbsim/devices/onu.go
index cfc7099..845067a 100644
--- a/internal/bbsim/devices/onu.go
+++ b/internal/bbsim/devices/onu.go
@@ -94,8 +94,7 @@
 )
 
 type FlowKey struct {
-	ID        uint64
-	Direction string
+	ID uint64
 }
 
 type Onu struct {