Dashboard Blog text remains in help text but setting has been removed, get_dashboard_blog function seems to be deprecated but is not marked as such

[nickciske]

1. Go to Network Settings on a multisite install.
2. Open the Help pane.
3. You'll see:

Dashboard Site is an option to give a site to users who do not have a site on the system. Their default role is Subscriber, but that default can be changed.

However, there is no longer a Dashboard Site field in the settings.

Additionally, it seems that get_dashboard_blog (which is the only code that appears to use this option) is not yet deprecated, despite being effectively removed 3 years ago in the 3.0 transition from MU to MS.

Related: #14696

[sillybean]

Remove help text for obsolete network settings

[SergeyBiryukov]

get_dashboard_blog() should probably be moved to ms-deprecated.php rather than deprecated.php.

[sillybean]

Deprecate unused get_dashboard_blog() function

[sillybean]

Quite right. Patch updated.

[ocean90]

The mentioned "notice feed" is gone too, see #14587.

[ocean90]

24838.patch​

• Uses @deprecated 3.1.0
• Removes alternative function
• Combines 24838-deprecate.diff​ and 24838-help.diff​

[nacin]

I like 24838.patch​. More clear what is going on, I think. Perhaps just add a comment along the lines of: "Dashboard blog functionality was removed in WordPress 3.1, replaced by the user admin."

[ryan]

In 24993:

Deprecate get_dashboard_blog().
Remove contextual help for Dashboard Site from the network settings screen.

Props sillybean, ocean90
fixes #24838