fix(prover): fix a check in isValidProof() (#679)

prover/event_handler/util.go

@@ -49,19 +49,9 @@ func isValidProof(
 		return false, err
 	}
 
-	l1Origin, err := rpc.L2.L1OriginByID(ctx, blockID)
-	if err != nil {
-		return false, err
-	}
-
-	l1Header, err := rpc.L1.HeaderByNumber(ctx, new(big.Int).Sub(l1Origin.L1BlockHeight, common.Big1))
-	if err != nil {
-		return false, err
-	}
-
 	return parent.Hash() == parentHash &&
 		l2Header.Hash() == blockHash &&
-		l1Header.Root == stateRoot, nil
+		l2Header.Root == stateRoot, nil
 }
 
 // getProvingWindow returns the provingWindow of the given proposed block.