p2b: Update vdl for 2 pass gen

MultiPart: 9/9
Change-Id: Ibbc269d8949878c58f3f38e647033521a4d3a8dc
diff --git a/go/src/v.io/x/p2b/vdl/p2b.vdl.go b/go/src/v.io/x/p2b/vdl/p2b.vdl.go
index 9ebdac4..962a895 100644
--- a/go/src/v.io/x/p2b/vdl/p2b.vdl.go
+++ b/go/src/v.io/x/p2b/vdl/p2b.vdl.go
@@ -11,7 +11,6 @@
 package vdl
 
 import (
-	// VDL system imports
 	"io"
 	"v.io/v23"
 	"v.io/v23/context"