Switch to ffnvcodec headers

drvapi_error_string.h

@@ -17,8 +17,6 @@
 #include <string.h>
 #include <stdlib.h>
 
-#ifdef	__cuda_cuda_h__                 // check to see if CUDA_H is included above
-
 // Error Code string definitions here
 typedef struct
 {
@@ -453,6 +451,4 @@ static inline const char *getCudaDrvErrorString(CUresult error_id)
         return (const char *)"CUDA_ERROR not found!";
 }
 
-#endif // __cuda_cuda_h__
-
 #endif