delete death contact_forms for "msn" in \wp-includes\deprecated.php

[Kniebremser]

Hey!
In wp-core are in the file \wp-includes\deprecated.php old unused contact_forms for "msn". "MSN" is now Windows Live or Skype.
These can be deleted or reactivated with the new service.

The most common contact_forms could also be integrated generally in the core. Currently I have many duplications, for example, for "G+", "Facebook" and "Twitter" by plugins and my theme used. These are unnecessary lines of code.

[SergeyBiryukov]

In wp-core are in the file \wp-includes\deprecated.php old unused contact_forms for "msn".

Looks like you're referring to get_the_author_msn() and other similar functions deprecated in 2.8:
tags/3.8/src/wp-includes/deprecated.php#L1533​.

They're just one-line wrappers for get_the_author_meta(). We generally don't remove deprecated functions for backwards compatibility reasons, so we should not remove these either.

The most common contact_forms could also be integrated generally in the core.

Related: #11541, #23143, #24952.