Force WordPress to strip/remove EXIF/IPTC metadata when resizing thumbnails

The Imageick strip_meta function is only called if the image_strip_meta hook returns true, but the function doesn’t actually strip all profiles. Some are protected, as you can see in the function code:

 /*
     * Protect a few profiles from being stripped for the following reasons:
     *
     * - icc:  Color profile information
     * - icm:  Color profile information
     * - iptc: Copyright data
     * - exif: Orientation data
     * - xmp:  Rights usage data
     */
    $protected_profiles = array(
        'icc',
        'icm',
        'iptc',
        'exif',
        'xmp',
    );