fix tx-pool remove expired

[zhangsoledad]

What problem does this PR solve?

The tx-pool does not expire for all transactions

What is changed and how it works?

• Fix the expiration of tx-pool
• Tweak the default size limit of the tx-pool, the previous value was too small
• Remove the max cycles limit of the tx-pool, the significance of the size limit is to control the memory usage, while for the cycles limit is not very meaningful, so it is removed.

Related changes

• PR to update owner/repo:
• Need to cherry-pick to the release branch

Check List

Tests

• Unit test
• Integration test

Side effects

• Performance regression
• Breaking backward compatibility

Release note

Title Only: Include only the PR title in the release note.

[doitian]

Suggest to add a new RPC method to get the minimal fee rate to enter the pool.

[zhangsoledad]

Suggest to add a new RPC method to get the minimal fee rate to enter the pool.

https://github.com/nervosnetwork/ckb/tree/develop/rpc#method-tx_pool_info
With the RPC tx_pool_info to get the min_fee_rate, do you think we still need a separate rpc to provide min_fee_rate?

[doitian]

Suggest to add a new RPC method to get the minimal fee rate to enter the pool.

https://github.com/nervosnetwork/ckb/tree/develop/rpc#method-tx_pool_info With the RPC tx_pool_info to get the min_fee_rate, do you think we still need a separate rpc to provide min_fee_rate?

It's enough. But this RPC lacks of the max size cycles info.

[zhangsoledad]

Suggest to add a new RPC method to get the minimal fee rate to enter the pool.

https://github.com/nervosnetwork/ckb/tree/develop/rpc#method-tx_pool_info With the RPC tx_pool_info to get the min_fee_rate, do you think we still need a separate rpc to provide min_fee_rate?

It's enough. But this RPC lacks of the max size cycles info.

added