Remove internal header file device_functions.h that is not allowed to include directly and will be removed in future CUDA release, eliminating compile warning by nvcc.

Author: Cstandardlib

source/source_lcao/module_gint/test/test_sph.cu

@@ -3,7 +3,6 @@
 
 #include "float.h"
 #include "cuda_runtime.h"
-#include "device_functions.h"
 #include "device_launch_parameters.h"
 #include "gtest/gtest.h"
 #include "source_lcao/module_hcontainer/hcontainer.h"