BP_Groups_Member::delete_invite( int $user_id, int $group_id, int $inviter_id = false )

	public static function delete_invite( $user_id, $group_id ) {
		global $wpdb;

		if ( empty( $user_id ) ) {
			return false;
		}

		/**
		 * Fires before a group invitation is deleted.
		 *
		 * @since BuddyPress 2.6.0
		 *
		 * @param int $user_id  ID of the user.
		 * @param int $group_id ID of the group.
		 */
		do_action( 'bp_groups_member_before_delete_invite', $user_id, $group_id );

		$table_name = buddypress()->groups->table_name_members;

		$sql = "DELETE FROM {$table_name}
				WHERE user_id = %d
					AND group_id = %d
					AND is_confirmed = 0
					AND inviter_id != 0";

		$prepared = $wpdb->prepare( $sql, $user_id, $group_id );

		return $wpdb->query( $prepared );
	}