chore: remove the check-plugins CI pipeline

[houhoucoop]

Summary

CI Validate Plugin build system failures during yarn install

error @aws-sdk/[email protected]: The engine "node" is incompatible with this module. Expected version ">=18.0.0". Got "16.20.2"

Ref: https://github.com/harvester/dashboard/actions/runs/12647471727/job/35243644923?pr=1257#step:4:397

PR Checklist

• Is this a multi-tenancy feature/bug?
  • Yes, the relevant RBAC changes are at:
• Do we need to backport changes to the old Rancher UI, such as RKE1?
  • Yes, the relevant PR is at:
• Are backend engineers aware of UI changes?
  • Yes, the backend owner is:

Related Issue #

Occurred changes and/or fixed issues

Technical notes summary

Areas or cases that should be tested

Areas which could experience regressions

Screenshot/Video

[a110605]

Is it not work to use node 18 in

dashboard/.github/workflows/check-plugins.yaml

Line 16 in 847ff8b

node-version: '16.x'

?

[houhoucoop]

Is it not work to use node 18 in

dashboard/.github/workflows/check-plugins.yaml

Line 16 in 847ff8b

node-version: '16.x'

?

Would it be better to use the same node version as the project?
The dashboard doesn't work with node 18.

[a110605]

As discussion, let's remove github/workflows/check-plugins.yaml .

[houhoucoop]

As discussion, let's remove github/workflows/check-plugins.yaml .

Update in commit bd6577c.