fix windows compilation issue when compile with VS2015, test=release/1.6 (#20114)

paddle/fluid/operators/instance_norm_op.cu

@@ -18,7 +18,6 @@ limitations under the License. */
 #include <vector>
 #include "cub/cub.cuh"
 #include "paddle/fluid/framework/data_layout.h"
-#include "paddle/fluid/operators/batch_norm_op.h"
 #include "paddle/fluid/operators/instance_norm_op.h"
 #include "paddle/fluid/operators/math/math_function.h"
 #include "paddle/fluid/platform/cudnn_helper.h"