Removing unused CI actions

[vishnuchalla]

Type of change

• Refactor
• New feature
• Bug fix
• Optimization
• Documentation Update

Description

Removing unnecessary CI actions. The step removed in this PR fixes the below issue.

Run for t in rendered/**/*.json; do echo "Importing ${t}"; dashboard=$(cat ${t}); echo "{\"dashboard\": ${dashboard}, \"overwrite\": true}" | curl -k -Ss -XPOST -H "Content-Type: application/json" -H "Accept: application/json" -d@- "***/api/dashboards/db" -o /dev/null; done 
Importing rendered/General/api-performance-overview.json
curl: (6) Could not resolve host: grafana.apps.observability.perfscale.devcluster.openshift.com
Error: Process completed with exit code [6](https://github.com/cloud-bulldozer/performance-dashboards/actions/runs/6690141990/job/18174905454#step:4:7).

Because github actions runner cannot reach a host in different network.

Related Tickets & Documents

• Related Issue #
• Closes #

Checklist before requesting a review

• I have performed a self-review of my code.
• If it is a core feature, I have added thorough tests.

Testing

Can be verified through the results from github actions.