Remove Playfair 900 weight

It is not used anywhere.

source/scss/fonts.scss

@@ -8,14 +8,3 @@
        url('../fonts/playfair-display-v21-latin-ext_latin_cyrillic-700.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
        url('../fonts/playfair-display-v21-latin-ext_latin_cyrillic-700.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }
-
-/* playfair-display-900 - latin */
-@font-face {
-  font-family: 'Playfair Display';
-  font-display: swap;
-  font-style: normal;
-  font-weight: 900;
-  src: local(''),
-       url('../fonts/playfair-display-v21-latin-ext_latin_cyrillic-900.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('../fonts/playfair-display-v21-latin-ext_latin_cyrillic-900.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
-}