Instagram co-founder Kevin Systrom announced at Le Web last week that Instagram would be dropping support for Twitter cards, and now users are finally seeing the full effect of this competitive move. Instagram photos, which previously appeared cropped in a user’s Twitter stream last week are now totally gone from within Twitter, and you’ll have to head to the web version of Instagram to see all your favorite pics, a Facebook spokeswoman confirmed this afternoon.

The disappearance isn’t a complete surprise: Twitter cards give you the ability to tap and expand a tweet to display content (photos, videos, article previews, etc.), so when Instagram turned off this functionality, it seemed likely that photos would eventually stop appearing in-stream.

Update: Twitter has put up a blog post explaining the removal, citing Instagram’s removal of Twitter cards:

“Instagram has disabled photo integration with Twitter. As a result, photos are no…