revert deleting ShareLoD

paddle/operators/clip_op.cc

@@ -34,6 +34,7 @@ class ClipOp : public framework::OperatorWithKernel {
     auto min = Attr<float>("min");
     PADDLE_ENFORCE_LT(min, max, "max should be greater than min.");
     ctx->SetOutputDim("Out", x_dims);
+    ctx->ShareLoD("X", /*->*/ "Out");
   }
 };