Stop using v=next

Summary: Somebody should commandeer and land this as a follow up to S549438

Reviewed By: mostafaeweda, sway-git

Differential Revision: D79860618

fbshipit-source-id: 1b26828a2f656c981f42e2fd23b03cb33c7917fc

Author: vahidkay-meta

core/class-facebookpixel.php

@@ -75,7 +75,7 @@ class FacebookPixel {
 n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
 n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;
 t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
-document,'script','https://connect.facebook.net/en_US/fbevents.js?v=next');
+document,'script','https://connect.facebook.net/en_US/fbevents.js');
 </script>
 <!-- End Meta Pixel Code -->
 ";