Revert "Merge branch 'user-info-unread-direct-conversation' into 'develop'"

This reverts merge request !1737

lib/pleroma/conversation/participation.ex

@@ -52,15 +52,6 @@ defmodule Pleroma.Conversation.Participation do
     participation
     |> read_cng(%{read: true})
     |> Repo.update()
-    |> case do
-      {:ok, participation} ->
-        participation = Repo.preload(participation, :user)
-        User.set_unread_conversation_count(participation.user)
-        {:ok, participation}
-
-      error ->
-        error
-    end
   end
 
   def mark_as_unread(participation) do
@@ -144,12 +135,4 @@ defmodule Pleroma.Conversation.Participation do
 
     {:ok, Repo.preload(participation, :recipients, force: true)}
   end
-
-  def unread_conversation_count_for_user(user) do
-    from(p in __MODULE__,
-      where: p.user_id == ^user.id,
-      where: not p.read,
-      select: %{count: count(p.id)}
-    )
-  end
 end