fix: working on rebuild from filesystem and analysis warnings

lib/bds/desktop/automation.ex

@@ -286,8 +286,6 @@ defmodule BDS.Desktop.Automation do
     end
   end
 
-  defp port_os_pid(nil), do: nil
-
   defp port_os_pid(port) do
     case Port.info(port, :os_pid) do
       {:os_pid, pid} when is_integer(pid) -> pid

lib/bds/desktop/main_window.ex

@@ -213,10 +213,8 @@ defmodule BDS.Desktop.MainWindow do
 
   defp wx_env_undefined? do
     try do
-      case :wx.get_env() do
-        :undefined -> true
-        _ -> false
-      end
+      _ = :wx.get_env()
+      false
     rescue
       ErlangError -> true
     end