refactor: remove finalizer removal code #7278

Job	Run time
[Generator Resource Expansion] Build and Test	11m 26s
Test Gator	3m 58s
Check codegen and manifest	3m 0s
Build and Test (1.25.8)	8m 36s
Build and Test (1.26.3)	11m 1s
[Helm] Build and Test (3.7.2, gatekeeper-system)	8m 13s
Lint	1m 2s
Build and Test (1.27.1)	10m 1s
[Trivy] Scan for vulnerabilities	4m 1s
[Helm] Build and Test (3.7.2, custom-namespace)	9m 1s
Build and Test (1.28.0)	8m 50s
Unit test	9m 13s
	1h 28m 22s

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