Remove 1px border from img inside table

I found this CSS rule that adds a 1px border to img inside table:

table td img,
table tr img {
	border: 1px solid #cac8a7;
	float: left;
	margin-right: 10px;
}

It doesn't appear to be used anywhere except in download/download-unix.html, where it looks like a bug. The only other files where img is nested in table are index.html and donate/thankyou.html, which both remove the border though more specific CSS rules.

I noticed this while trying to add a table to download-easy.html for #14838 (moved).