vulncheck: remove resolved TODO

Change-Id: Ia3f9c203f054bb0f6003c95c6ea1c8249d8a0cbc
Reviewed-on: https://go-review.googlesource.com/c/vuln/+/432517
Run-TryBot: Zvonimir Pavlinovic <zpavlinovic@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
diff --git a/vulncheck/utils.go b/vulncheck/utils.go
index fe33f65..868fa72 100644
--- a/vulncheck/utils.go
+++ b/vulncheck/utils.go
@@ -76,7 +76,6 @@
 	pruneSet(fslice, allFuncs)
 
 	cg := vta.CallGraph(fslice, vtaCg)
-	// TODO(#53206): can we do the same for intermediate call graphs?
 	cg.DeleteSyntheticNodes()
 	return cg
 }