deleteImage method
Remove the named image from the Subreddit.
Implementation
Future<void> deleteImage(String name) async {
const kImgName = 'img_name';
final uri = apiPath['delete_sr_image']
.replaceAll(SubredditRef._subredditRegExp, _subreddit.displayName);
await _subreddit.reddit
.post(uri, <String, String>{'api_type': 'json', kImgName: name});
}