Revert "Better error handling for user feeds."

This reverts commit 11714fba.

lib/pleroma/web/ostatus/ostatus_controller.ex

@@ -8,13 +8,11 @@ defmodule Pleroma.Web.OStatus.OStatusController do
   import Ecto.Query
 
   def feed_redirect(conn, %{"nickname" => nickname}) do
-    with %User{} = user <- User.get_cached_by_nickname(nickname) do
-      case get_format(conn) do
-        "html" -> Fallback.RedirectController.redirector(conn, nil)
-        _ -> redirect conn, external: OStatus.feed_path(user)
-      end
-    else
-      _e -> send_resp(conn, 404, "No user found")
+    user = User.get_cached_by_nickname(nickname)
+
+    case get_format(conn) do
+      "html" -> Fallback.RedirectController.redirector(conn, nil)
+      _ -> redirect conn, external: OStatus.feed_path(user)
     end
   end