Remove use of int8x4 format for the rocblas (#1920)

* do not use int8x4 format for the rocblas

src/targets/gpu/rocblas.cpp

@@ -55,9 +55,16 @@ bool get_compute_fp32_flag()
 
 bool get_int8_x4_format(context& ctx)
 {
+#if ROCBLAS_VERSION_MAJOR >= 3
+    (void)(ctx);
+    return false;
+#else
+    // int8x4 packed format is only available starting from rocblas-v2.38 and it is deprecated in
+    // v3.0 and will be removed in v4.0
     rocblas_gemm_flags flag;
     rocblas_query_int8_layout_flag(ctx.get_stream().get_rocblas(), &flag);
     return flag == rocblas_gemm_flags_pack_int8x4;
+#endif
 }
 } // namespace gpu
 } // namespace MIGRAPHX_INLINE_NS