[18.0][IMP] pos_order_remove_line: warning messages when saving the settings

[nguyenminhchien]

Description

• The field pos_line_remove_btn did not respect this check: point_of_sale/models/res_config_settings.py#L149

• So, whenever saving the setting of Pos Config (or any other applications), we face this warning:

The value of 'pos_line_remove_btn' is not properly saved to the pos_config_id field because the destination field 'line_remove_btn' is not a valid field in the pos.config model

Solution:

• Rename pos_line_remove_btn to line_remove_btn.
• Do the same for pos_line_remove_warning.

[OCA-git-bot]

Hi @robyf70,
some modules you are maintaining are being modified, check this out!