Delete unused iconTypeFromName file (#22662)

GitOrigin-RevId: 3c768cacebcf229d932a7b03a4068291e3cf60b1

services/web/frontend/js/ide/file-tree/util/iconTypeFromName.js

@@ -1,34 +0,0 @@
-/* eslint-disable
-    max-len,
-    no-return-assign,
-    no-unused-vars,
-*/
-// TODO: This file was created by bulk-decaffeinate.
-// Fix any style issues and re-enable lint.
-/*
- * decaffeinate suggestions:
- * DS103: Rewrite code to no longer use __guard__
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
- */
-let iconTypeFromName
-
-export default iconTypeFromName = function (name) {
-  const ext = __guard__(name.split('.').pop(), x => x.toLowerCase())
-  if (['png', 'pdf', 'jpg', 'jpeg', 'gif'].includes(ext)) {
-    return 'image'
-  } else if (['csv', 'xls', 'xlsx'].includes(ext)) {
-    return 'table'
-  } else if (['py', 'r'].includes(ext)) {
-    return 'file-text'
-  } else if (['bib'].includes(ext)) {
-    return 'book'
-  } else {
-    return 'file'
-  }
-}
-
-function __guard__(value, transform) {
-  return typeof value !== 'undefined' && value !== null
-    ? transform(value)
-    : undefined
-}