Update src/index.css

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: gurusatsangi

src/index.css

@@ -883,7 +883,3 @@ hr,
     background-color: #3b82f6;
     color: #fff;
 }
-
-.hidden {
-    display: none;
-}