RBAC: Fix delete team permissions on team delete (#83442)

* RBAC: Remove team permissions on delete

* Remove unecessary deletes from store function

* Nit on mock

* Add test to the database

* Nit on comment

* Add another test to check that other permissions remain

pkg/services/team/teamapi/team.go

@@ -127,6 +127,12 @@ func (tapi *TeamAPI) deleteTeamByID(c *contextmodel.ReqContext) response.Respons
 		}
 		return response.Error(http.StatusInternalServerError, "Failed to delete Team", err)
 	}
+
+	// Clear associated team assignments, managed role and permissions
+	if err := tapi.ac.DeleteTeamPermissions(c.Req.Context(), orgID, teamID); err != nil {
+		return response.Error(http.StatusInternalServerError, "Failed to delete Team permissions", err)
+	}
+
 	return response.Success("Team deleted")
 }