Revert "Temporary workaround for xdevplatform#107."

This reverts commit 15cd8f3.

lib/twitter-ads/campaign/line_item.rb

@@ -85,16 +85,5 @@ def targeting_criteria(id = nil, opts = {})
  id ? TargetingCriteria.load(account, id, opts) : TargetingCriteria.all(account, @id, opts)
  end
 
- def to_params
- params = super
-
- # If automatically_set_bid is set, bid_type must not be set.
- params.delete(:bid_type) if params[:automatically_select_bid]
-
- # advertiser_user_id is currently beta-only and causes an error when sent.
- params.delete(:advertiser_user_id)
-
- params
- end
  end
 end