Do something with the_post_format_*() functions

[markjaquith]

As a remaining bit of the post format UI extraction, we need a strategy for functions like:

• the_post_format_video()
• the_post_format_audio()
• the_post_format_image()

And some of their get counterparts.

[wonderboymusic]

I am going to suggest moving these functions into the plugin and not leaving them in core

[wonderboymusic]

Pour one out 24610.diff​​

[ocean90]

+1 for removing.

[markjaquith]

In 24555:

Remove some more post format functions.

props wonderboymusic. fixes #24610.

[ocean90]

img_html_to_post_id() should be removed as well.

[ocean90]

In 24569:

Remove img_html_to_post_id(). It's unused since [24555]. fixes #24610.