wp-includes/icons.php:74Unregisters an icon.
$icon_namestringboolfunction wp_unregister_icon( $icon_name ) { return WP_Icons_Registry::get_instance()->unregister( $icon_name );}Introduced in 7.1.0.
Signature, return type and hooks compared across 1 parsed release.
src/wp-includes/icons.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.