remove custom group admin override (???)

frontend/lib/api/admin/admin-groups.ts

@@ -12,9 +12,4 @@ const routes = {
 export class AdminGroupsApi extends BaseCRUDAPI<GroupBase, GroupInDB, GroupAdminUpdate> {
   baseRoute: string = routes.adminUsers;
   itemRoute = routes.adminUsersId;
-
-  async updateOne(id: string, payload: GroupAdminUpdate) {
-    // TODO: This should probably be a patch request, which isn't offered by the API currently
-    return await this.requests.put<GroupInDB, GroupAdminUpdate>(this.itemRoute(id), payload);
-  }
 }