Remove style tags from head

My solution removes now all <link></link> tags and <style>@import url()</style> googleapi entries in the given HTML:

add_action( 'wp_footer', 'SPDSGVOPublic::removeGoogleFonts' );


     /**
     * Remove all occurrences of google fonts
     */
    public static function removeGoogleFonts()
    {
        ob_start();
        $content = ob_get_clean();
        $patternImportUrl="/(@import[\s]url\((?:"|\")((?:https?:)?\/\/fonts\.googleapis\.com\/css(?:(?!\1).)+)(?:"|\')\)\;)/';
        $patternLinkTag = '/<link(?:\s+(?:(?!href\s*=\s*)[^>])+)?(?:\s+href\s*=\s*([\'"])((?:https?:)?\/\/fonts\.googleapis\.com\/css(?:(?!\1).)+)\1)(?:\s+[^>]*)?>/';

        preg_match_all($patternImportUrl, $content, $matchesImportUrl);
        preg_match_all($patternLinkTag, $content, $matchesLinkTag);

        $matches = array_merge($matchesImportUrl,$matchesLinkTag);

        foreach( $matches as $match ) {
            $content = str_replace( $match, '', $content );
        }

        echo $content;
    }