Notify availability addon

Notify availability addon

Please tell me where I can remove this http://prntscr.com/85nigo

And I want to change the sizes of this window https://www.webdesigner-profi.de/joomla-webdesign/components/com_jshopping/files/img_products/full_9d574ccd61f5e340d18535ee1cf80dd7.jpg where I can do this.. I cant find. As I understand correct these sizes are written in php, not css file.

Please ask asap.

Thank you.

Aw: Notify availability addon

1. delete function onBeforeDisplayProductList(&$products){

\plugins\jshoppingproducts\inform_availability_product\inform_availability_product.php

2. change _getLinkShowForm

size: {x: 250, y: 220}