github/workflows: remove static analysis

This workflow is stable and running on Prow's infrastructure, refer to:
* PR: kubernetes/test-infra#32563
* Code: https://github.com/kubernetes/test-infra/blob/0dc2e876292f8bc237ffbe0fcbfd0c81066b6eae/config/jobs/etcd/etcd-presubmits.yaml#L53-L87

Signed-off-by: Ivan Valdes <[email protected]>