WIP: This will remove Google Hangouts links from Google pages so that you can use your own dialer

remove-google-hangouts-links.js

function removeHangoutsLink(hangoutsLink)
{
	var hangoutsSpan = hangoutsLink.parentNode;
	while (hangoutsLink.firstChild) hangoutsSpan.parentNode.insertBefore(hangoutsLink.firstChild, hangoutsSpan);
	hangoutsSpan.parentNode.removeChild(hangoutsSpan);
}

var hangoutLinkOrLinks = $('a[href*="hangouts.google.com"]');
if (Array.isArray(hangoutLinkOrLinks)) hangoutLinkOrLinks.each(removeHangoutsLink);
else removeHangoutsLink(hangoutLinkOrLinks);