The Strike-through price is still showing when even when there’s no discount price

I found that the strikethrough price issue is not coming from the Finale plugin.

For testing, I deactivated the Finale plugin, refer: http://imgwxl.com/hi/2019-13-03-53.png  

And I can still see the issue: http://imgwxl.com/hi/2019-13-05-12.png
So this means the issue is not coming from Finale plugin.

I debugged more to check what is happening and found out the plugin “Product Variation Swatches for WooCommerce” is firing an ajax call and displaying the price.

Can you fix this?