Fix nvcc path samples that include math_functions.h

Change-Id: I94bb577b93983535178d8f0dcae57aaa72871534

include/hip/math_functions.h

@@ -30,7 +30,7 @@ THE SOFTWARE.
 #if defined(__HIP_PLATFORM_HCC__) && !defined (__HIP_PLATFORM_NVCC__)
 #include <hip/hcc_detail/math_functions.h>
 #elif defined(__HIP_PLATFORM_NVCC__) && !defined (__HIP_PLATFORM_HCC__)
-#include <hip/nvcc_detail/math_functions.h>
+//#include <hip/nvcc_detail/math_functions.h>
 #else
 #error("Must define exactly one of __HIP_PLATFORM_HCC__ or __HIP_PLATFORM_NVCC__");
 #endif