diff --git a/core.go b/core.go
index fb4448b8..00f99777 100644
--- a/core.go
+++ b/core.go
@@ -159,13 +159,6 @@ func NewScalar(v1 float64, v2 float64, v3 float64, v4 float64) Scalar {
 	return s
 }
 
-func toByteArray(b []byte) C.struct_ByteArray {
-	return C.struct_ByteArray{
-		data:   (*C.char)(unsafe.Pointer(&b[0])),
-		length: C.int(len(b)),
-	}
-}
-
 func toGoBytes(b C.struct_ByteArray) []byte {
 	return C.GoBytes(unsafe.Pointer(b.data), b.length)
 }