message: Disable producer voting for test network.
diff: @@ -276,6 +276,7 @@ void apply_eos_setproducer(apply_context& context) {
  void apply_eos_okproducer(apply_context& context) {
  + FC_ASSERT(false, "voting for producers is disabled for this test network");
  auto approve = context.msg.as<types::okproducer>();
  EOS_ASSERT(approve.approve == 0 || approve.approve == 1, message_validate_exception,
  "Unknown approval value: ${val}; must be either 0 or 1", ("val", approve.approve));
  