In `wp-admin/custom-header.php`, `$default_color` is set twice before it is used. The first is unnecessary.

See #27882.


git-svn-id: https://develop.svn.wordpress.org/trunk@28290 602fd350-edb4-49c9-b593-d223f7449a82
Remove unreachable `break` statements in `wp-admin/edit-tags.php`. `break` is unnecessary after `die`, `exit`, and `wp_die`.

See #27882.


git-svn-id: https://develop.svn.wordpress.org/trunk@28291 602fd350-edb4-49c9-b593-d223f7449a82