Remove themes from wp-themes.com upon theme status moving to draft in addition to being suspended.

[dd32]

Right now we remove themes from wp-themes.com upon theme suspension, but not upon the status of the theme being moved back to Draft.

This causes problems when themes are delisted, but not suspended. An example of this is when the theme causes PHP fatal errors, which with the move to PHP7 recently is much more common - those themes are being moved to draft to allow the author to fix the problem, rather than being outright suspended.

tl;dr: Upon status = draft, call wporg_themes_remove_wpthemescom( $theme_slug ).

[Otto42]

In 5572:

Theme Directory: Remove theme from previewer on move to draft. Fixes #2475, props @SergeyBiryukov