Remove function superuser?

Everything now happens with privileged?/2

lib/pleroma/user.ex

@@ -371,11 +371,6 @@ defp privileged_for?(privilege_tag, true, config_role_key),
 
   defp privileged_for?(_, _, _), do: false
 
-  @spec superuser?(User.t()) :: boolean()
-  def superuser?(%User{local: true, is_admin: true}), do: true
-  def superuser?(%User{local: true, is_moderator: true}), do: true
-  def superuser?(_), do: false
-
   @spec invisible?(User.t()) :: boolean()
   def invisible?(%User{invisible: true}), do: true
   def invisible?(_), do: false

test/pleroma/user_test.exs

@@ -1918,34 +1918,6 @@ test "returns true for local admins if, and only if, they are privileged" do
     end
   end
 
-  describe "superuser?/1" do
-    test "returns false for unprivileged users" do
-      user = insert(:user, local: true)
-
-      refute User.superuser?(user)
-    end
-
-    test "returns false for remote users" do
-      user = insert(:user, local: false)
-      remote_admin_user = insert(:user, local: false, is_admin: true)
-
-      refute User.superuser?(user)
-      refute User.superuser?(remote_admin_user)
-    end
-
-    test "returns true for local moderators" do
-      user = insert(:user, local: true, is_moderator: true)
-
-      assert User.superuser?(user)
-    end
-
-    test "returns true for local admins" do
-      user = insert(:user, local: true, is_admin: true)
-
-      assert User.superuser?(user)
-    end
-  end
-
   describe "invisible?/1" do
     test "returns true for an invisible user" do
       user = insert(:user, local: true, invisible: true)