fix: remove duplicate code (#3674)

index.html

@@ -125,18 +125,6 @@
           }
         }
 
-        @keyframes ant-rotate {
-          to {
-            transform: rotate(405deg);
-          }
-        }
-
-        @keyframes ant-spin-move {
-          to {
-            opacity: 1;
-          }
-        }
-
         @keyframes ant-spin-move {
           to {
             opacity: 1;