rm blank lines inside some #if blocks

Device/Data/Datafield.h

@@ -16,10 +16,8 @@
 #define BORNAGAIN_DEVICE_DATA_DATAFIELD_H
 
 #ifdef BORNAGAIN_PYTHON
-
 #include "PyCore/Embed/PyObjectDecl.h"
-
-#endif
+#endif // BORNAGAIN_PYTHON
 
 #include <memory>
 #include <string>

Sample/Correlations/Profiles1D.h

@@ -19,9 +19,7 @@
 #include "Param/Node/INode.h"
 
 #ifndef SWIG
-
 #include "Sample/Correlations/IDistribution1DSampler.h"
-
 #endif // SWIG
 
 

Sample/Correlations/Profiles2D.h

@@ -21,9 +21,7 @@
 
 using std::numbers::pi;
 #ifndef SWIG
-
 #include "Sample/Correlations/IDistribution2DSampler.h"
-
 #endif // SWIG
 
 

Sample/Material/Material.h

@@ -23,9 +23,7 @@
 #include <vector>
 
 #ifndef SWIG
-
 #include "Sample/Material/IMaterialImpl.h"
-
 #endif // SWIG
 
 class SpinMatrix;