WP_REST_Terms_Controller::delete_item( WP_REST_Request $request )

	public function delete_item( $request ) {
		$term = $this->get_term( $request['id'] );
		if ( is_wp_error( $term ) ) {
			return $term;
		}

		$force = isset( $request['force'] ) ? (bool) $request['force'] : false;

		// We don't support trashing for terms.
		if ( ! $force ) {
			/* translators: %s: force=true */
			return new WP_Error( 'rest_trash_not_supported', sprintf( __( "Terms do not support trashing. Set '%s' to delete." ), 'force=true' ), array( 'status' => 501 ) );
		}

		$request->set_param( 'context', 'view' );

		$previous = $this->prepare_item_for_response( $term, $request );

		$retval = wp_delete_term( $term->term_id, $term->taxonomy );

		if ( ! $retval ) {
			return new WP_Error( 'rest_cannot_delete', __( 'The term cannot be deleted.' ), array( 'status' => 500 ) );
		}

		$response = new WP_REST_Response();
		$response->set_data( array( 'deleted' => true, 'previous' => $previous->get_data() ) );

		/**
		 * Fires after a single term is deleted via the REST API.
		 *
		 * The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
		 *
		 * @since WP-4.7.0
		 *
		 * @param WP_Term          $term     The deleted term.
		 * @param WP_REST_Response $response The response data.
		 * @param WP_REST_Request  $request  The request sent to the API.
		 */
		do_action( "rest_delete_{$this->taxonomy}", $term, $response, $request );

		return $response;
	}