JFJochReceiver: Remove host subdirectory

tests/AcquisitionCountersTest.cpp

@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 #include <catch2/catch.hpp>
-#include "../receiver/host/AcquisitionCounters.h"
+#include "../receiver/AcquisitionCounters.h"
 
 TEST_CASE("AcquisitionCountersTest","[AcquisitionDeviceCounters]") {
     DiffractionExperiment x(DetectorGeometry(2));