Optimizing SVG icons

[Ronnie Chong]

I noticed most the SVG icons in the current collection have a series of unused or not optimized meta data. e.g.
<!-- Generator: Sketch 51.1 (57501) - http://www.bohemiancoding.com/sketch -->
<title>Icon/Fill/ic_arrived_fill</title>
<desc>Created with Sketch.</desc>
<defs></defs>

Just wondering if we should omit some of them and save a few more bytes on the filesize? 😄

[Lin Xu]

Yes, it could be omitted or omitted as part of an automated script. I don't know if @karuto wanted to work on this. If not, maybe you can contribute something here. :) 👍