Remove diago_elpa dependency on diagh.h

Author: Cstandardlib

source/module_hsolver/diago_elpa.h

@@ -1,7 +1,8 @@
 #ifndef DIAGOELPA_H
 #define DIAGOELPA_H
 
-#include "diagh.h"
+#include "module_base/macros.h"   // GetRealType
+#include "module_hamilt_general/hamilt.h"
 #include "module_basis/module_ao/parallel_orbitals.h"
 
 namespace hsolver