[fix] [broker] fix typo and useless local variable.

[thetumbled]

Motivation

fix typo and useless local variable.

Modifications

fix typo and useless local variable.

Verifying this change

• Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

Matching PR in forked repository

PR in forked repository:

[thetumbled]

PTAL, thanks. @lhotari @Technoboy- @dao-jun

[thetumbled]

/pulsarbot rerun-failure-checks

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.20%. Comparing base (bbc6224) to head (82f7eae).
Report is 265 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #22704      +/-   ##
============================================
- Coverage     73.57%   73.20%   -0.38%     
- Complexity    32624    32858     +234     
============================================
  Files          1877     1889      +12     
  Lines        139502   141392    +1890     
  Branches      15299    15516     +217     
============================================
+ Hits         102638   103502     +864     
- Misses        28908    29909    +1001     
- Partials       7956     7981      +25     

Flag	Coverage Δ
inttests	27.46% <ø> (+2.87%)	⬆️
systests	24.75% <ø> (+0.43%)	⬆️
unittests	72.22% <ø> (-0.63%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
.../persistent/ReplicatedSubscriptionsController.java	70.14% <ø> (-2.45%)	⬇️

... and 357 files with indirect coverage changes