chore: remove unused code

Author: edoardo

src/components/Item/FatalErrorBoundary.js

@@ -1,9 +1,7 @@
 import PropTypes from 'prop-types'
 import React from 'react'
-import { IconWarning24, colors } from '@dhis2/ui'
-import { Warning } from './assets/icons.js'
-import classes from './styles/FatalErrorBoundary.module.css'
 import FatalErrorMessage from './ItemMessage/FatalErrorMessage.js'
+import classes from './styles/FatalErrorBoundary.module.css'
 
 class FatalErrorBoundary extends React.Component {
     constructor(props) {