Remove RoleHierarchyImpl Deprecations #8644

Job	Run time
Test Against Snapshots (17, 17) / Test	9m 12s
Build (windows-latest, 17) / Build	16m 28s
Build (ubuntu-latest, 17) / Build	11m 44s
Test Against Snapshots (21-ea, 21) / Test	8m 47s
Deploy Artifacts / Deploy Artifacts	1m 48s
Deploy Schema / Deploy Schema	56s
Deploy Docs / Deploy Docs	1m 9s
Send Notification	5s
Perform Release / Perform Release	0s
	50m 9s

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