other gemm kernel use half-vector-machine style

StgSharp.Native/sn-head/StgSharpNative.h

@@ -1,10 +1,10 @@
-#ifdef _MSC_VER
-#pragma once
-#endif
-
 #ifndef SNative
 #define SNative
 
+#ifdef __cplusplus
+#error "This header is not meant to be included in C++ code. StgSharp.Native is a C library and should be used with C linkage."
+#endif
+
 #include "sn_internal.h"
 #include "sn_target.h"
 
@@ -26,10 +26,6 @@
 #ifndef SN_
 #endif
 
-#define ALIGN(simdVec) _mm_loadu_ps(&simdVec)
-#define ALIGN256(simdVec) _mm256_loadu_ps(&simdVec)
-#define ALIGN512(simdVec) _mm512_loadu_ps(&simdVec)
-
 typedef struct Image {
         int width;
         int height;