refactor: remove redundant returned error

[z1cheng]

close #99

[codecov[bot]]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (eba0d26) 33.28% compared to head (53df1bc) 31.49%.

:exclamation: Current head 53df1bc differs from pull request most recent head 612b1aa. Consider uploading reports for the commit 612b1aa to get more accurate results

Files	Patch %	Lines
...controllers/statusaggregator/plugins/deployment.go	0.00%	2 Missing :warning:
pkg/util/annotation/annotation.go	88.23%	2 Missing :warning:
pkg/controllers/nsautoprop/controller.go	0.00%	1 Missing :warning:
pkg/controllers/status/controller.go	0.00%	1 Missing :warning:
pkg/controllers/sync/resource.go	0.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #290      +/-   ##
==========================================
- Coverage   33.28%   31.49%   -1.79%     
==========================================
  Files         155      122      -33     
  Lines       17892    14300    -3592     
==========================================
- Hits         5955     4504    -1451     
+ Misses      11427     9391    -2036     
+ Partials      510      405     -105     

Flag	Coverage Δ
unittests	31.49% <76.66%> (-1.79%)	:arrow_down:

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