I was able to resolve this issue by deactivating the plugin, reactivating it, and going back to the Settings>>Billing section and the extra billing fields showed up. I wasn’t able to remove them, I was able to mark them as NOT required though.
I then added this code to my CSS file to hide the address fields which are now not required.
#billing_country_field, #billing_first_name_field, #billing_last_name_field, #billing_company_field, #billing_address_1_field, #billing_address_2_field, #billing_city_field, #billing_state_field, #billing_postcode_field, #billing_phone_field {display:none !important;}
Note: After reactivating the plugin I get this message again at the top of the Settings page:
Almost done! Install latest settings. Click Here
I did NOT click and install the latest settings this time around. I’m not sure if that was part of the success of the overall solution, but I’m not going to click it as everything is working fine now (hidden address fields, not required).