code: @Override
      public DeleteUsagePlanResult deleteUsagePlan(DeleteUsagePlanRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteUsagePlan(request);
      }
docs: <p>
  Deletes a usage plan of a given plan Id.
  </p>
  
  @param deleteUsagePlanRequest
  The DELETE request to delete a usage plan of a given plan Id.
  @return Result of the DeleteUsagePlan operation returned by the service.
  @throws UnauthorizedException
  The request is denied because the caller has insufficient permissions.
  @throws TooManyRequestsException
  The request has reached its throttling limit. Retry after the specified time period.
  @throws BadRequestException
  The submitted request is not valid, for example, the input is incomplete or incorrect. See the
  accompanying error message for details.
  @throws NotFoundException
  The requested resource is not found. Make sure that the request URI is correct.
  @sample AmazonApiGateway.DeleteUsagePlan