remove css font declaration

Author: jenny-s51

src/app/app.css

@@ -11,9 +11,4 @@ body,
   /* changes all <blockquote> left border color to purple */
   --pf-c-content--hr--BackgroundColor: lemonchiffon;
   /* changes a <hr> color to lemonchiffon */
-}
-
-@font-face {
-  font-family: "RedHatDisplay";
-  src: url("../../node_modules/@patternfly/react-core/dist/styles/assets/fonts/RedHatDisplay/RedHatDisplay-Regular.woff2");
 }