Hi,
The asterisks are added by the custom field system of HikaShop.
When a field is required, the asterisk is added.
If you want to remove them, the best is to add a line in the view just before the field is displayed. By removing (just for the view) that the field is not "required" the asterisk won't be displayed.
The view is the "user | custom_fields" (or custom_fields_bootstrap if you have the bootstrap design).
And the goal is to edit the variable $oneExtraField->field_required to set it false.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.