message: integration_tests: remove printf
  Just a drive by commit, sorry about that.
diff: @@ -60,7 +60,6 @@ TEST_F(SitlTest, ActionHoverAsync)
  void receive_result(ActionResult result)
  {
  - LogDebug() << "got result: " << unsigned(result);
  EXPECT_EQ(result, ActionResult::SUCCESS);
  }
  