Remove oEmbed support for Vine

[johnbillion]

oEmbed support for Vine.co should be removed for the following reasons:

• Vine effectively shut down in December 2016, although it does still exist in a read-only state (​ref).
• The oEmbed endpoint no longer works and returns a 404 (​ref).
• Developer documentation for Vine has been removed (​ref).

Support was introduced three short years ago in #30426.

[danieltj]

Removed the Vine oEmbed.

[danieltj]

Removed the Vine oEmbed from Core. Essentially reversed the commit to add it in.

[netweb]

Vine should also be removed from https://core.trac.wordpress.org/browser/trunk/src/wp-admin/includes/class-wp-press-this.php#L458

[danieltj]

Removes all instances of Vine in Core

[danieltj]

Added a new patch which removes all instances of Vine within Core except themes (will need a separate ticket for those). Thanks for flagging up the Press This code @netweb! I've done a search in the entire code base to make sure there's nothing else and seem to have got everything.

If anyone can do a test for me, please do!

[netweb]

There will be some oEmbed tests added on Monday in #41784 which will be 👌🏻

[johnbillion]

In 41347:

Embeds: Remove support for oEmbedded videos from Vine.

• Vine effectively shut down in December 2016.
• The oEmbed endpoint no longer works and returns a 404.
• Developer documentation for Vine has been removed.

Fixes #41817

[johnbillion]

@danieltj I'm so sorry, I missed your props in [41347] :-(

[danieltj]

Replying to johnbillion:

@danieltj I'm so sorry, I missed your props in [41347] :-(

Ah, don't worry about it. If you could do me a favour and check out some of my other waiting patches that'd be awesome. Thanks for committing though! :)