apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/controller/AccessKeyController.java/AccessKeyController/delete
class AccessKeyController:  @PreAuthorize(value = "@permissionValidator.isAppAdmin(#appId)")
  @DeleteMapping(value = "/apps/{appId}/envs/{env}/accesskeys/{id}")
  public void delete(@PathVariable String appId,
      @PathVariable String env,
      @PathVariable long id) {
    String operator = userInfoHolder.getUser().getUserId();
    accessKeyService.deleteAccessKey(Env.valueOf(env), appId, id, operator);
  }