In `WP_Customize_Manager::register_controls()`, `$menu_locations` is set and never used.


git-svn-id: https://develop.svn.wordpress.org/trunk@28546 602fd350-edb4-49c9-b593-d223f7449a82
`break` is unreachable in `WP_Theme::translate_header()`.

See #27882.


git-svn-id: https://develop.svn.wordpress.org/trunk@28547 602fd350-edb4-49c9-b593-d223f7449a82
In `get_attachment_icon_src()`, `$class` is set in 2 conditions but never used.

See #27882.


git-svn-id: https://develop.svn.wordpress.org/trunk@28548 602fd350-edb4-49c9-b593-d223f7449a82