Revert "Fix for IDN domains"

[subregular]

Reverts #1

Need to redo the root domain identification, with the option of internationalized domain names.

if the domain is indeed an IDN.
if there is an "idn" application in the system.
Possible to do with acme.sh built-in function "_idn() "

[dyadMisha]

totally agree, but meanwhile if someone search for a solution, here is the quick and dirty fix that worked for me.

[subregular]

totally agree, but meanwhile if someone search for a solution, here is the quick and dirty fix that worked for me.

The dns_rm function is not working correctly with your patch. Records are not deleted if the root domain is IDN.
The latest version of the script is fixed and tested with IDN and regular domains.
I would be grateful for testing.

p.s.
There are more scripts for acme.sh:

• Same errors with
  Replace Yandex PDD api with Yandex360 api acmesh-official/acme.sh#4599
• Another interpretation
  https://github.com/comm644/acme_dnsapi_yandex360