fix: delete unused return args

[lucming]

Ⅰ. Describe what this PR does

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Base: 68.92% // Head: 68.67% // Decreases project coverage by -0.24% ⚠️

Coverage data is based on head (ac6452e) compared to base (22e9d78).
Patch coverage: 33.33% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #724      +/-   ##
==========================================
- Coverage   68.92%   68.67%   -0.25%     
==========================================
  Files         205      205              
  Lines       23329    23341      +12     
==========================================
- Hits        16079    16030      -49     
- Misses       6141     6204      +63     
+ Partials     1109     1107       -2     

Flag	Coverage Δ
unittests	68.67% <33.33%> (-0.25%)	⬇️

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

Impacted Files	Coverage Δ
pkg/koordlet/executor/resource_update_executor.go	29.57% <0.00%> (+0.41%)	⬆️
pkg/koordlet/resmanager/cgroup_reconcile.go	86.98% <100.00%> (+0.62%)	⬆️
...r/plugins/elasticquota/core/group_quota_manager.go	71.12% <0.00%> (-10.85%)	⬇️
pkg/scheduler/plugins/elasticquota/pod_handler.go	64.28% <0.00%> (-7.72%)	⬇️
pkg/scheduler/plugins/elasticquota/controller.go	72.30% <0.00%> (-3.70%)	⬇️
.../scheduler/plugins/elasticquota/core/quota_info.go	82.27% <0.00%> (-2.90%)	⬇️
pkg/scheduler/plugins/elasticquota/plugin.go	73.64% <0.00%> (-0.36%)	⬇️
...oordlet/runtimehooks/protocol/container_context.go	7.69% <0.00%> (-0.31%)	⬇️
.../scheduler/plugins/coscheduling/core/gang_cache.go	74.85% <0.00%> (+0.15%)	⬆️
pkg/scheduler/plugins/elasticquota/node_handler.go	67.69% <0.00%> (+0.50%)	⬆️

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[jasonliu747]

/lgtm
@lucming 辛苦更新一下 PR 标题

[zwzhang0107]

/lgtm

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