--- ./pxr/usd/usdShade/input.h
+++ ./pxr/usd/usdShade/input.h
@@ -373,34 +373,34 @@
     bool SetConnectedSources(
         std::vector<UsdShadeConnectionSourceInfo> const &sourceInfos) const;

-    using SourceInfoVector = TfSmallVector<UsdShadeConnectionSourceInfo, 1>;
+    // using SourceInfoVector = TfSmallVector<UsdShadeConnectionSourceInfo, 1>;

-    /// Finds the valid sources of connections for the Input.
-    /// 
-    /// \p invalidSourcePaths is an optional output parameter to collect the
-    /// invalid source paths that have not been reported in the returned vector.
-    /// 
-    /// Returns a vector of \p UsdShadeConnectionSourceInfo structs with
-    /// information about each upsteam attribute. If the vector is empty, there
-    /// have been no valid connections.
-    /// 
-    /// \note A valid connection requires the existence of the source attribute
-    /// and also requires that the source prim is UsdShadeConnectableAPI
-    /// compatible.
-    /// \note The python wrapping returns a tuple with the valid connections
-    /// first, followed by the invalid source paths.
-    /// 
-    /// \sa UsdShadeConnectableAPI::GetConnectedSources
-    ///
-    USDSHADE_API
-    SourceInfoVector GetConnectedSources(
-        SdfPathVector *invalidSourcePaths = nullptr) const;
+    // /// Finds the valid sources of connections for the Input.
+    // /// 
+    // /// \p invalidSourcePaths is an optional output parameter to collect the
+    // /// invalid source paths that have not been reported in the returned vector.
+    // /// 
+    // /// Returns a vector of \p UsdShadeConnectionSourceInfo structs with
+    // /// information about each upsteam attribute. If the vector is empty, there
+    // /// have been no valid connections.
+    // /// 
+    // /// \note A valid connection requires the existence of the source attribute
+    // /// and also requires that the source prim is UsdShadeConnectableAPI
+    // /// compatible.
+    // /// \note The python wrapping returns a tuple with the valid connections
+    // /// first, followed by the invalid source paths.
+    // /// 
+    // /// \sa UsdShadeConnectableAPI::GetConnectedSources
+    // ///
+    // USDSHADE_API
+    // SourceInfoVector GetConnectedSources(
+    //     SdfPathVector *invalidSourcePaths = nullptr) const;

-    /// \deprecated
-    USDSHADE_API
-    bool GetConnectedSource(UsdShadeConnectableAPI *source,
-                            TfToken *sourceName,
-                            UsdShadeAttributeType *sourceType) const;
+    // /// \deprecated
+    // USDSHADE_API
+    // bool GetConnectedSource(UsdShadeConnectableAPI *source,
+    //                         TfToken *sourceName,
+    //                         UsdShadeAttributeType *sourceType) const;

     /// \deprecated
     /// Returns the "raw" (authored) connected source paths for this Input.
@@ -499,17 +499,17 @@
     // -------------------------------------------------------------------------
     /// @{

-    /// \brief Find what is connected to this Input recursively
-    ///
-    /// \sa UsdShadeUtils::GetValueProducingAttributes
-    USDSHADE_API
-    UsdShadeAttributeVector GetValueProducingAttributes(
-        bool shaderOutputsOnly = false) const;
+    // /// \brief Find what is connected to this Input recursively
+    // ///
+    // /// \sa UsdShadeUtils::GetValueProducingAttributes
+    // USDSHADE_API
+    // UsdShadeAttributeVector GetValueProducingAttributes(
+    //     bool shaderOutputsOnly = false) const;

-    /// \deprecated in favor of calling GetValueProducingAttributes
-    USDSHADE_API
-    UsdAttribute GetValueProducingAttribute(
-        UsdShadeAttributeType* attrType) const;
+    // /// \deprecated in favor of calling GetValueProducingAttributes
+    // USDSHADE_API
+    // UsdAttribute GetValueProducingAttribute(
+    //     UsdShadeAttributeType* attrType) const;

     /// @}