fix: remove icons list from Icon page since deprecated (#1960)

Author: reesscot

docs/src/pages/[platform]/components/icon/AllIcons.tsx

@@ -1,6 +1,5 @@
 import { Button, Icon, Flex, Text, Alert } from '@aws-amplify/ui-react';
 import { IconDemo } from './demo';
-import { AllIcons } from './AllIcons';
 import { Example, ExampleCode } from '@/components/Example';
 import { ComponentStyleDisplay } from '@/components/ComponentStyleDisplay';
 
@@ -62,8 +61,6 @@ Use a default icon from the [Material Design icons](http://google.github.io/mate
   </ExampleCode>
 </Example>
 
-<AllIcons />
-
 ## Custom icon
 
 ### Using path data