Revert "luatelnet: missing debug message."

This reverts commit 8c1d2b3e.

share/lua/intf/telnet.lua

@@ -243,6 +243,7 @@ while not vlc.misc.should_die() do
                 returned_values = returned_values .. client.buffer
                 client.buffer = commands
             end
+            vlc.msg.err("end of loop")
             client.buffer = returned_values
         end
     end