Rename folder and remove unnecessary images

Author: reinink

src/pages/blog/2022-12-12-protocol-api-documentation-template/headlessui-v17.jpg

@@ -1,10 +1,6 @@
 import { adamwathan } from '@/authors'
 import protocolPreview from './protocol-preview.jpg'
 import documentationExampleScreenshot from './documentation-example-screenshot.png'
-import heroiconsCover from './heroicons-cover.jpg'
-import headlessuiCard from './headlessui-v17.jpg'
-import playInsiders from './play-insiders.png'
-import phoenix from './phoenix.png'
 import card from './card.jpg'
 
 export const meta = {