harmputman

‘woof_front’ didn’t work, because this is not a registered handler.
I got it working by using my original script, but adding the action on ‘wp_head’ instead of ‘wp_print_styles’ hook and setting a higher priority value.

function remove_woof_css() {
    wp_dequeue_style( 'chosen-drop-down' );
    wp_dequeue_style( 'icheck-jquery-color' );
    wp_dequeue_style( 'woof' );
}
add_action( 'wp_head', 'remove_woof_css', 9999 );

Thanks for the tips!