You can remove these from the settings form by modifying the store-settings.php template.
Here are instructions for modifying templates: https://www.wcvendors.com/kb/changing-vendor-templates/
The store-settings.php template is located here:
Move the template to your theme/child theme as instructed in the article.
To remove these, look for lines 60-70. Comment out
// those lines like this:
<?php// WCVendors_Pro_Store_Form::store_address_city( ); ?> <?php //WCVendors_Pro_Store_Form::store_address_state( ); ?> <?php// WCVendors_Pro_Store_Form::store_address_postcode( ); ?>