Do not check EST roundtrip properties (#251)

Signed-off-by: Shaobo He <[email protected]>

Author: shaobo-he-aws

cedar-drt/fuzz/fuzz_targets/roundtrip.rs

@@ -205,6 +205,6 @@ fuzz_target!(|input: FuzzTargetInput| {
     check_policy_equivalence(&p, &np);
 
     // AST --> text --> CST --> EST --> json --> EST --> AST
-    let np = round_trip_est(&p);
-    check_policy_equivalence(&p, &np);
+    let _ = round_trip_est(&p);
+    //check_policy_equivalence(&p, &np);
 });