chore: Move txpool statistics from callbacks to PoolMap

[chenyukang]

What problem does this PR solve?

Problem Summary:

The total_tx_size and total_tx_cycle are zero when we use plug_entry to add entries into tx_pool, which caused some confusing when debugging.

Updating statics was implemented in callbacks because we had 3 separate queue in txpool, now we have refactor it to the only one PoolMap, it's better and cleaner to move this part to PoolMap.

What is changed and how it works?

What's Changed:

Cleanup callbacks to move txpool statics part to PoolMap.

Related changes

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

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code ci-runs-only: [ quick_checks,linters ]

Release note

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

[eval-exec]

I believe this change introduces a logical inconsistency compared to the previous commit. In the previous commit, when self.pool_map.remove_entry(id) was Some, it would return true, but now it returns false.

[chenyukang]

self.pool_map.remove_entry(id) will never return Some(_), because the above self.pool_map.remove_entry_and_descendants(id) already removed the entry with id.