Chore: remove unnecessary go mod

[Somefive]

Description of your changes

Fixes #

I have:

• Read and followed KubeVela's contribution process.
• Related Docs updated properly. In a new feature or configuration option, an update to the documentation is necessary.
• Run make reviewable to ensure this PR is ready for review.
• Added backport release-x.y labels to auto-backport this PR if necessary.

How has this code been tested

Special notes for your reviewer

[codecov]

Codecov Report

Patch coverage: 44.44% and project coverage change: -0.05 ⚠️

Comparison is base (be3b990) 66.51% compared to head (f6af729) 66.47%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6093      +/-   ##
==========================================
- Coverage   66.51%   66.47%   -0.05%     
==========================================
  Files         191      191              
  Lines       24852    24780      -72     
==========================================
- Hits        16531    16472      -59     
+ Misses       6724     6707      -17     
- Partials     1597     1601       +4     

Flag	Coverage Δ
core-unittests	55.22% <22.22%> (+0.05%)	⬆️
e2e-multicluster-test	30.74% <22.22%> (-0.02%)	⬇️
e2etests	33.52% <0.00%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
pkg/cmd/utils.go	28.57% <ø> (+0.79%)	⬆️
pkg/config/writer/writer.go	51.04% <ø> (ø)
pkg/utils/common/common.go	51.66% <ø> (-5.71%)	⬇️
pkg/utils/env/env.go	10.43% <28.57%> (+0.84%)	⬆️
pkg/appfile/appfile.go	69.83% <100.00%> (ø)
pkg/component/ref_objects.go	82.45% <100.00%> (ø)

... and 5 files with indirect coverage changes

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