Remove the usage of txn metadata file

This commit removes the usage of transaction metadata file. Initially, it was used by the apply process to bypass transactions that were already applied. However, this approach had its challenges. Specifically, in live replay mode, a transaction with numerous statements could fill the UNIX PIPE (an IPC primitive used in replay mode), leading to a potential deadlock. This is because the apply process would be waiting for the transaction metadata file.

By eliminating the transaction metadata file, the apply process lets the transaction proceed and decides whether to apply or skip it based on the commit LSN during the commit phase.

Signed-off-by: Arunprasad Rajkumar <[email protected]>