fix merge conflict

paddle/operators/sequence_pool_op.h

@@ -111,7 +111,8 @@ class SequencePoolGradKernel : public framework::OpKernel<T> {
     in_g->mutable_data<T>(context.GetPlace());
     if (strategy == LAST || strategy == FIRST) {
       // set X@Grad be zero at first when strategy is LAST/FIRST
-      math::SetConstant<Place, T>(context.device_context(), in_g, 0);
+      math::SetConstant<Place, T> functor;
+      functor(context.device_context(), in_g, 0);
     }
     auto place = context.GetEigenDevice<Place>();
     for (int i = 0; i < static_cast<int>(lod.size()) - 1; ++i) {