Remove references to the rebrand assets folders

Author: domoscargin

source/import-font-and-images-assets/index.html.md.erb

@@ -28,13 +28,12 @@ If you decide to copy the assets instead, copy the:
 - `/node_modules/govuk-frontend/dist/govuk/assets/images` folder to `<YOUR-APP>/assets/images`
 - `/node_modules/govuk-frontend/dist/govuk/assets/fonts` folder to `<YOUR-APP>/assets/fonts`
 - `/node_modules/govuk-frontend/dist/govuk/assets/manifest.json` file to `<YOUR-APP>/assets`
-- `/node_modules/govuk-frontend/dist/govuk/assets/rebrand folder` to `<YOUR-APP>/assets/rebrand`
 
 You should use an automated task or your build pipeline to copy the files, so your project folder stays up to date when we update GOV.UK Frontend.
 
 ### If you have your own folder structure
 
-If you use a different folder structure than `<YOUR-APP>/assets/images`, `<YOUR-APP>/assets/fonts` and `<YOUR-APP>/assets/rebrand`, you can set Sass variables so that Sass builds the CSS to point to your folders.
+If you use a different folder structure than `<YOUR-APP>/assets/images` and `<YOUR-APP>/assets/fonts`, you can set Sass variables so that Sass builds the CSS to point to your folders.
 
 Set one of the following before the `@import` line in your Sass file: