Use multiple inheritance to remove accelerator_kokkos.h out of pair.h

src/compute_rdf.cpp

@@ -32,6 +32,7 @@
 #include "math_const.h"
 #include "memory.h"
 #include "error.h"
+#include "comm.h"
 
 using namespace LAMMPS_NS;
 using namespace MathConst;