CLearningGroupMember::delete

static function delete($userId, $groupId)
{
	global $DB;

	$rc = $DB->Query(
		"DELETE FROM b_learn_groups_member 
		WHERE USER_ID = " . (int) $userId . "
			AND LEARNING_GROUP_ID = " . (int) $groupId,
		$bIgnoreErrors = true
	);

	return ($rc !== false);
}