message: integration_tests: passthrough no longer required
diff: #include "mavsdk.h"
  #include "plugins/component_information/component_information.h"
  #include "plugins/component_information_server/component_information_server.h"
  -#include "plugins/mavlink_passthrough/mavlink_passthrough.h"
  #include "plugins/param/param.h"
  using namespace mavsdk;
  @@ -55,7 +54,6 @@ TEST(ComponentInformation, Connect)
  LogInfo() << "Param " << param_update.name << " changed to " << param_update.value;
  });
  - auto passthrough_client = MavlinkPassthrough{groundstation};
  auto param_client = Param{groundstation};
  param_client.set_param_float("ANG_RATE_ACC_MAX", 4.0f);
  