Removed SVG from NFT OEmbed
Removed SVG from NFT OEmbed

refs https://github.com/TryGhost/Team/issues/1211

The SVG is causing issues with copy/paste in Firefox, we're going to
remove it and later replace it with a PNG.

ErisDS/Ghost,e10/Ghost,e10/Ghost,ErisDS/Ghost,TryGhost/Ghost,TryGhost/Ghost,TryGhost/Ghost,ErisDS/Ghost