diff --git a/ssl/test/runner/prf.go b/ssl/test/runner/prf.go
index 50f37df..cfc383d 100644
--- a/ssl/test/runner/prf.go
+++ b/ssl/test/runner/prf.go
@@ -129,14 +129,8 @@
 		return prf30
 	case VersionTLS10, VersionTLS11:
 		return prf10
-	// TODO(nharper): VersionTLS13 is in the case statement below only to
-	// support Fake TLS 1.3. Real TLS 1.3 should never call this function.
-	// Once we no longer support Fake TLS 1.3, the VersionTLS13 should be
-	// removed from this case statement.
-	case VersionTLS12, VersionTLS13:
-		if version == VersionTLS12 {
-			return prf12(suite.hash().New)
-		}
+	case VersionTLS12:
+		return prf12(suite.hash().New)
 	}
 	panic("unknown version")
 }