revert code

Author: shivani170

src/css/icons.scss

@@ -188,11 +188,6 @@
     height: 48px;
 }
 
-.icon-dim-72 {
-    width: 72px;
-    height: 72px;
-}
-
 .icon-dim-80 {
     width: 80px;
     height: 80px;