Remove Application.ensure_all_started(:ssl)

We already have `:ssl` in `:extra_applications`.

lib/tds/protocol.ex

@@ -423,8 +423,6 @@ defmodule Tds.Protocol do
   end
 
   defp ssl_connect(%{sock: {:gen_tcp, sock}, opts: opts} = s) do
-    {:ok, _} = Application.ensure_all_started(:ssl)
-
     case Tds.Tls.connect(sock, opts[:ssl_opts] || []) do
       {:ok, ssl_sock} ->
         state = %{s | sock: {:ssl, ssl_sock}}