chore: remove unused RBAC role #2387

Job	Run time
Run Cargo Tests	45s
Run Cargo Udeps	1m 55s
Run RustDoc	1m 20s
Decide if Helm charts are pushed to the helm repository based on action trigger	3s
Check if committed README is the one we would render from the available parts	23s
Run Rustfmt	15s
Check if committed Helm charts are up to date	56s
Run Cargo Deny (advisories)	47s
Run Cargo Deny (bans licenses sources)	50s
Run Clippy	44s
All tests passed	4s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 52s
Package Charts, Build Docker Image and publish them - ubuntu-latest	11m 12s
Build and publish manifest list	40s
Run the OpenShift Preflight check on the published images	20s
	30m 6s

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