feat(route): remove key-auth plugin tip

[zaunist]

Please answer these questions before submitting a pull request, or your PR will get closed.

Why submit this pull request?

• Bugfix
• New feature provided
• Improve performance
• Backport patches

What changes will this PR take into?

remove the tip in the key-auth configure page when create/configure route 、 service and global plugin.

Related issues

resolve #2092

Checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[zaunist]

[LiteSun]

The CI failed and just helped you re-run the CI.

[codecov-commenter]

Codecov Report

Merging #2261 (ecf0fb0) into master (b565f7c) will decrease coverage by 1.71%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2261      +/-   ##
==========================================
- Coverage   69.84%   68.13%   -1.72%     
==========================================
  Files         184      127      -57     
  Lines        7272     3370    -3902     
  Branches      829      829              
==========================================
- Hits         5079     2296    -2783     
+ Misses       1898     1074     -824     
+ Partials      295        0     -295     

Flag	Coverage Δ
backend-e2e-test	?
backend-e2e-test-ginkgo	?
backend-unit-test	?
frontend-e2e-test	68.13% <100.00%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
web/src/components/Plugin/PluginDetail.tsx	70.52% <100.00%> (+0.17%)	⬆️
api/internal/handler/tool/tool.go
api/internal/handler/healthz/healthz.go
api/internal/core/entity/interface.go
api/internal/handler/server_info/server_info.go
api/internal/conf/conf.go
api/internal/core/store/validate.go
api/internal/filter/cors.go
api/internal/utils/closer.go
api/internal/core/entity/entity.go
... and 48 more

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[zaunist]

@juzhiyuan Please help me to re run failed CI, thanks.

[juzhiyuan]

done

[juzhiyuan]

done

[juzhiyuan]

done

[zaunist]

cc @LiteSun @okaybase @bzp2010

[guoqqqi]

LGTM

[Baoyuantop]

Need to deal with more special cases