Remove cublas dependency

include/utils/cuda_helper.cuh

@@ -2,9 +2,6 @@
 #define CUDA_HELPER_H
 
 #include <cuda_runtime.h>
-#include <cublas_v2.h>
-
-#define IDX2C(i,j,ld) (((j)*(ld))+(i))
 
 // CUDA error checking macro
 #define CUDA_CHECK(call) \
@@ -18,15 +15,4 @@ do { \
     } \
 } while (0)
 
-// cuBLAS error checking macro
-#define CUBLAS_CHECK(call) \
-do { \
-    cublasStatus_t result = call; \
-    if (result != CUBLAS_STATUS_SUCCESS) { \
-        fprintf(stderr, "cuBLAS error at %s:%d code=%d\n", \
-                __FILE__, __LINE__, static_cast<unsigned int>(result)); \
-        exit(EXIT_FAILURE); \
-    } \
-} while (0)
-
 #endif // CUDA_HELPER_H