download-releases-6-5.php pattern: remove unwanted alt texts

[audrasjb]

Describe the bug
Alt texts should be empty for illustrative images as per our Accessibility Standards: https://make.wordpress.org/accessibility/handbook/content/alternative-text-for-images/

Please remove unwanted alt texts from the download-releases-6-5.php pattern.

Thanks!

[ryelle]

Thanks for flagging that. I've removed all the alt-texts from that page (thinking about it like the About page, it seems like all the images are decorative). I also removed some alt text from the homepage, which also seemed decorative. See 9cbe881

[audrasjb]

Thanks!