remove redundant head on ChannelOwner.returning/2

Co-authored-by: Corey Innis <[email protected]>

Author: ry4n1m3

lib/playwright/sdk/channel_owner.ex

@@ -119,11 +119,6 @@ defmodule Playwright.SDK.ChannelOwner do
         end
       end
 
-      defp returning(owner, task) do
-        task.()
-        Channel.find(owner.session, {:guid, owner.guid})
-      end
-
       defp returning(%{session: session} = subject, task) do
         task.()
         Channel.find(session, {:guid, subject.guid})