code: private void removeAccountParams() {
          Editor editor = PreferenceManager.getDefaultSharedPreferences(mContext).edit();
          editor.remove(mContext.getString(R.string.wings_dropbox__account_name_key));
          editor.remove(mContext.getString(R.string.wings_dropbox__share_url_key));
          editor.remove(mContext.getString(R.string.wings_dropbox__access_token_key));
  
          // Set preference to unlinked.
          editor.putBoolean(mContext.getString(R.string.wings_dropbox__link_key), false);
          editor.apply();
      }
docs: Removes the account params from persisted storage.