removeData does not remove data- attributes

[Kruncher]

The removeData function does not remove data attributes that were present in original HTML. This seems inconsistent with usage of data function.

<div data-test="42"></div>

$('div').data('test') === "42"; // true
$('div').removeData('test');
$('div').data('test') === "42"; // true

The removeAttr function works, surely removeData should do the same?

[dmethvin]

Duplicate of #10026.