tidy(ui): clean up unused code 3

variables, types and schemas

invokeai/frontend/web/src/features/system/components/SettingsModal/StyledFlex.tsx

@@ -1,13 +0,0 @@
-import { Flex } from '@invoke-ai/ui-library';
-import type { PropsWithChildren } from 'react';
-import { memo } from 'react';
-
-const StyledFlex = (props: PropsWithChildren) => {
-  return (
-    <Flex flexDirection="column" gap={2} p={4} borderRadius="base" bg="base.900">
-      {props.children}
-    </Flex>
-  );
-};
-
-export default memo(StyledFlex);