[NPU] Fix the compiling error caused by operators::ValidateShape() (#2876)

lite/kernels/npu/bridges/reshape_op.cc

@@ -73,8 +73,7 @@ int ReshapeConverter(void* ctx, OpLite* op, KernelBase* kernel) {
       auto shape =
           std::vector<int>(actual_shape_data,
                            actual_shape_data + actual_shape_dims.production());
-      auto out_dims = lite::operators::ValidateShape(shape, x_dims);
-      auto out_shape = out_dims.Vectorize();
+      auto out_shape = lite::operators::ValidateShape(shape, x_dims);
       if (out_shape.size() > 4) {
         LOG(WARNING) << "[NPU] HiAI DDK only supports less than 4 dimensions, "
                         "but Shape has "
@@ -88,8 +87,7 @@ int ReshapeConverter(void* ctx, OpLite* op, KernelBase* kernel) {
     reshape_op->set_input_w(*actual_shape_node->data());
   } else {
     auto shape = op_info->GetAttr<std::vector<int>>("shape");
-    auto out_dims = lite::operators::ValidateShape(shape, x_dims);
-    auto out_shape = out_dims.Vectorize();
+    auto out_shape = lite::operators::ValidateShape(shape, x_dims);
     if (out_shape.size() > 4) {
       LOG(WARNING) << "[NPU] HiAI DDK only supports less than 4 dimensions, "
                       "but shape has "