[POP] totalPollingNum count error

[Git-Yang]

BUG REPORT

1. Please describe the issue you observed:
   May result in failure to polling in the broker.
   

• What is expected to see?
  Decrement ‘totalPollingNum‘ by 1 when removing request from ‘remotingCommands’.

• What did you see instead?

2. Please tell us about your environment:

3. Other information (e.g. detailed explanation, logs, related issues, suggestions on how to fix, etc):

[Git-Yang]

@ayanamist Can you help to check?

[github-actions]

This issue is stale because it has been open for 365 days with no activity. It will be closed in 3 days if no further activity occurs.

[github-actions]

This issue was closed because it has been inactive for 3 days since being marked as stale.