Remove legacy nip_ee_mls feature-gating code

lib/parrhesia/policy/event_policy.ex

@@ -30,7 +30,6 @@ defmodule Parrhesia.Policy.EventPolicy do
           | :pow_below_minimum
           | :pubkey_banned
           | :event_banned
-          | :mls_disabled
 
   @spec authorize_read([map()], MapSet.t(String.t())) :: :ok | {:error, policy_error()}
   def authorize_read(filters, authenticated_pubkeys) when is_list(filters) do
@@ -57,8 +56,7 @@ defmodule Parrhesia.Policy.EventPolicy do
       fn -> enforce_pow(event) end,
       fn -> enforce_protected_event(event, authenticated_pubkeys) end,
       fn -> enforce_media_metadata_policy(event) end,
-      fn -> enforce_push_notification_policy(event) end,
-      fn -> enforce_mls_feature_flag(event) end
+      fn -> enforce_push_notification_policy(event) end
     ]
 
     Enum.reduce_while(checks, :ok, fn check, :ok ->
@@ -135,7 +133,6 @@ defmodule Parrhesia.Policy.EventPolicy do
   def error_message(:pow_below_minimum), do: "pow: minimum proof-of-work difficulty not met"
   def error_message(:pubkey_banned), do: "blocked: pubkey is banned"
   def error_message(:event_banned), do: "blocked: event is banned"
-  def error_message(:mls_disabled), do: "blocked: mls feature flag is disabled"
 
   defp maybe_require_auth_for_write(authenticated_pubkeys) do
     if config_bool([:policies, :auth_required_for_writes], false) and
@@ -651,14 +648,6 @@ defmodule Parrhesia.Policy.EventPolicy do
     end
   end
 
-  defp enforce_mls_feature_flag(event) do
-    if event["kind"] in [443, 445, 10_051] and not config_bool([:features, :nip_ee_mls], false) do
-      {:error, :mls_disabled}
-    else
-      :ok
-    end
-  end
-
   defp config_bool([scope, key], default) do
     case Application.get_env(:parrhesia, scope, []) |> Keyword.get(key, default) do
       true -> true

lib/parrhesia/storage/adapters/postgres/events.ex

@@ -855,12 +855,12 @@ defmodule Parrhesia.Storage.Adapters.Postgres.Events do
   defp parse_unix_seconds(_unix_seconds), do: nil
 
   defp maybe_apply_mls_group_retention(nil, 445, created_at) do
-    if Application.get_env(:parrhesia, :features, []) |> Keyword.get(:nip_ee_mls, false) do
-      ttl =
-        :parrhesia
-        |> Application.get_env(:policies, [])
-        |> Keyword.get(:mls_group_event_ttl_seconds, 300)
+    ttl =
+      :parrhesia
+      |> Application.get_env(:policies, [])
+      |> Keyword.get(:mls_group_event_ttl_seconds, 300)
 
+    if is_integer(ttl) and ttl > 0 do
       created_at + ttl
     else
       nil

lib/parrhesia/web/connection.ex

@@ -443,8 +443,7 @@ defmodule Parrhesia.Web.Connection do
               :push_notification_replay_window_exceeded,
               :push_notification_missing_expiration,
               :push_notification_expiration_too_far,
-              :push_notification_server_recipients_exceeded,
-              :mls_disabled
+              :push_notification_server_recipients_exceeded
             ],
        do: EventPolicy.error_message(reason)
 

lib/parrhesia/web/relay_info.ex

@@ -37,15 +37,6 @@ defmodule Parrhesia.Web.RelayInfo do
       86,
       98
     ]
-    |> maybe_add_mls()
-  end
-
-  defp maybe_add_mls(nips) do
-    if Parrhesia.Config.get([:features, :nip_ee_mls], false) do
-      ["EE" | nips]
-    else
-      nips
-    end
   end
 
   defp limitations do