Remove WordPress logo from toolbar

By default, WordPress displays its own logo in the top left corner of the toolbar (so-called adminbar). If you want to remove it, you can do so either with the plugin Remove WP Branding or programmatically in this way:

function cwhf_remove_logo_wp_toolbar() {
        global $wp_admin_bar;
        $wp_admin_bar->remove_menu( 'wp-logo' );
}
add_action( 'wp_before_admin_bar_render', 'cwhf_remove_logo_wp_toolbar', 0 );