MultiServer: remove remaining forfeit compat from network layer

MultiServer.py

@@ -544,7 +544,7 @@ def get_save(self) -> dict:
             "stored_data": self.stored_data,
             "game_options": {"hint_cost": self.hint_cost, "location_check_points": self.location_check_points,
                              "server_password": self.server_password, "password": self.password,
-                             "forfeit_mode": self.release_mode, "release_mode": self.release_mode,  # TODO remove forfeit_mode around 0.4
+                             "release_mode": self.release_mode,
                              "remaining_mode": self.remaining_mode, "collect_mode": self.collect_mode,
                              "item_cheat": self.item_cheat, "compatibility": self.compatibility}
 
@@ -769,7 +769,6 @@ async def on_client_connected(ctx: Context, client: Client):
 
 def get_permissions(ctx) -> typing.Dict[str, Permission]:
     return {
-        "forfeit": Permission.from_text(ctx.release_mode),  # TODO remove around 0.4
         "release": Permission.from_text(ctx.release_mode),
         "remaining": Permission.from_text(ctx.remaining_mode),
         "collect": Permission.from_text(ctx.collect_mode)