`wp-admin/network/admin.php` is required by all of the individual network templates and begins with an `is_multisite()` check of its own. Because of this, we can remove the 26 other checks in the individual templates.
Props flixos90.
Fixes#37447.
git-svn-id: https://develop.svn.wordpress.org/trunk@38657 602fd350-edb4-49c9-b593-d223f7449a82
* All WordPress files move to a src/ directory.
* New task runner (Grunt), configured to copy a built WordPress to build/.
* svn:ignore and .gitignore for Gruntfile.js, wp-config.php, and node.js.
* Remove Akismet external from develop.svn. Still exists in core.svn.
* Drop minified files from src/. The build process will now generate these.
props koop.
see #24976.
and see http://wp.me/p2AvED-1AI.
git-svn-id: https://develop.svn.wordpress.org/trunk@25001 602fd350-edb4-49c9-b593-d223f7449a82