Replaying in readonly mode still replays prepared DML statements

[djshow832]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

Replay TPCC with --read-only=true using a readonly account

2. What did you expect to see? (Required)

No exceptions and most of the statements are filtered

3. What did you see instead (Required)

Lots of exceptions

4. What is your version? (Required)

master