nixos/samba: remove bad example for "securityType" option

Setting "security = share" causes silent failures.

Changed files
-1
nixos
modules
services
network-filesystems
-1
nixos/modules/services/network-filesystems/samba.nix
···
securityType = mkOption {
type = types.str;
default = "user";
-
example = "share";
description = "Samba security type";
};
···
securityType = mkOption {
type = types.str;
default = "user";
description = "Samba security type";
};