Doing this was helpful to Voiceover users as its
announcement of the label meant the page title
(normally announced onload) wasn't skipped.
This isn't the case with JAWS so, prefixing the
title makes it announce it twice.
JAWS has a lot more users and the title being
announced twice is more confusing than not at all
so this removes it.
Since moving textboxes to GOV.UK Frontend we’ve started putting the
data attribute on the `input` element itself, not a wrapper around it.
This commit updates the Javascript accordingly.
One of the simplest of our JavaScript files to
test how difficult this is.
Answer is not too bad and includes the file
needing a DOM to operate on and jQuery in the
global scope.
