diff --git a/onnxruntime/core/graph/contrib_ops/contrib_defs.cc b/onnxruntime/core/graph/contrib_ops/contrib_defs.cc
index 58d585e3c1..0d5b89b1f3 100644
--- a/onnxruntime/core/graph/contrib_ops/contrib_defs.cc
+++ b/onnxruntime/core/graph/contrib_ops/contrib_defs.cc
@@ -32,63 +32,6 @@ void RegisterContribSchemas() {
 Sample echo operator.)DOC");
 
   // register schemas for more operators here
-  ONNX_CONTRIB_OPERATOR_SCHEMA(ConvMaxPool)
-      .SetDomain(kMSDomain)
-      .SinceVersion(1)
-      .SetDoc(R"DOC(
- Port Conv1D::ComputeConvMaxPoolWithActivationAndMask() method in TP3L1 c++ model.)DOC")
-      .Attr(
-          "auto_pad",
-          "",
-          AttributeProto::STRING,
-          std::string("NOTSET"))
-      .Attr(
-          "kernel_shape",
-          "",
-          AttributeProto::INTS,
-          OPTIONAL)
-      .Attr(
-          "dilations",
-          "",
-          AttributeProto::INTS,
-          OPTIONAL)
-      .Attr(
-          "strides", "", AttributeProto::INTS, OPTIONAL)
-      .Attr("pads",
-            "",
-            AttributeProto::INTS, OPTIONAL)
-      .Attr(
-          "group",
-          "",
-          AttributeProto::INT,
-          static_cast<int64_t>(1))
-      .Attr(
-          "activation",
-          "",
-          AttributeProto::STRING,
-          OPTIONAL)
-      .Input(
-          0,
-          "X",
-          "",
-          "T")
-      .Input(
-          1,
-          "W",
-          "",
-          "T")
-      .Input(2, "B", "", "T", OpSchema::Optional)
-      .Input(3, "M", "mask", "T", OpSchema::Optional)
-      .Output(
-          0,
-          "Y",
-          "",
-          "T")
-      .TypeConstraint("T", {"tensor(float16)", "tensor(float)", "tensor(double)"}, "Constrain input and output types to float tensors")
-      .TypeAndShapeInferenceFunction([](ONNX_NAMESPACE::InferenceContext& ctx) {
-        ONNX_NAMESPACE::convPoolTypeAndShapeInference(ctx, false, true);
-      });
-
   ONNX_CONTRIB_OPERATOR_SCHEMA(FusedConv)
       .SetDomain(kMSDomain)
       .SinceVersion(1)
@@ -125,11 +68,6 @@ activation.)DOC")
           "",
           AttributeProto::STRING,
           OPTIONAL)
-      .Attr(
-          "alpha",
-          "",
-          AttributeProto::FLOAT,
-          OPTIONAL)
       .Input(
           0,
           "X",