remove deprecated tags

style.css

@@ -7,7 +7,7 @@ Author: Chris Reynolds
 Author URI: https://www.jazzsequence.com
 License: GNU General Public License v3.0
 License URI: http://www.gnu.org/licenses/gpl-3.0.html
-Tags: two-columns, white, custom-menu, threaded-comments, sticky-post, custom-background, featured-image-header, featured-images, post-formats, right-sidebar, left-sidebar, custom-header, featured-image-header, translation-ready, theme-options, gray, responsive-layout, fixed-layout, custom-colors, custom-menu, full-width-template, microformats, rtl-language-support, threaded-comments
+Tags: two-columns, custom-menu, threaded-comments, sticky-post, custom-background, featured-image-header, featured-images, post-formats, right-sidebar, left-sidebar, custom-header, featured-image-header, translation-ready, theme-options, custom-colors, custom-menu, full-width-template, microformats, rtl-language-support, threaded-comments
 Text Domain: museum-core
 GitHub Repo: https://github.com/jazzsequence/museum-core/
 */