إلغاء تأشيرة موظف منتدب بعد خلاف مع العميل

The employer has no issues with me and he does not ask me to serve a notice period. I want to know if the employer will make any statement of absconding. The visa will close automatically without any issues?

If you do not formally cancel your visa (in the absence of your passport which is required for formal cancellation), he will have no option but to declare you absconding.

The visa will not close automatically. Yes, it will expire after 180 days but before that, under the law, the employer must report you absconding.