diff --git a/libraries/animation/src/Rig.cpp b/libraries/animation/src/Rig.cpp
index 3c16ad71b1..1c9d9a3447 100644
--- a/libraries/animation/src/Rig.cpp
+++ b/libraries/animation/src/Rig.cpp
@@ -179,7 +179,7 @@ void Rig::restoreRoleAnimation(const QString& role) {
             } else {
                 qCWarning(animation) << "Rig::restoreRoleAnimation could not find role " << role;
             }
-            
+
             auto statesIter = _roleAnimStates.find(role);
             if (statesIter != _roleAnimStates.end()) {
                 _roleAnimStates.erase(statesIter);
@@ -1050,42 +1050,6 @@ void Rig::updateAnimations(float deltaTime, const glm::mat4& rootTransform, cons
     }
 }
 
-float Rig::getLimbLength(int jointIndex, const QVector<int>& freeLineage,
-                         const glm::vec3 scale, const QVector<FBXJoint>& fbxJoints) const {
-    ASSERT(false);
-    return 1.0f;
-}
-
-glm::quat Rig::setJointRotationInBindFrame(int jointIndex, const glm::quat& rotation, float priority) {
-    ASSERT(false);
-    return glm::quat();
-}
-
-glm::vec3 Rig::getJointDefaultTranslationInConstrainedFrame(int jointIndex) {
-    ASSERT(false);
-    return glm::vec3();
-}
-
-glm::quat Rig::setJointRotationInConstrainedFrame(int jointIndex, glm::quat targetRotation, float priority, float mix) {
-    ASSERT(false);
-    return glm::quat();
-}
-
-bool Rig::getJointRotationInConstrainedFrame(int jointIndex, glm::quat& quatOut) const {
-    ASSERT(false);
-    return false;
-}
-
-void Rig::clearJointStatePriorities() {
-    ASSERT(false);
-}
-
-glm::quat Rig::getJointDefaultRotationInParentFrame(int jointIndex) {
-    ASSERT(false);
-    return glm::quat();
-}
-
-
 void Rig::updateFromEyeParameters(const EyeParameters& params) {
     updateEyeJoint(params.leftEyeJointIndex, params.modelTranslation, params.modelRotation, params.eyeLookAt, params.eyeSaccade);
     updateEyeJoint(params.rightEyeJointIndex, params.modelTranslation, params.modelRotation, params.eyeLookAt, params.eyeSaccade);
diff --git a/libraries/animation/src/Rig.h b/libraries/animation/src/Rig.h
index 0877e7326d..87277af754 100644
--- a/libraries/animation/src/Rig.h
+++ b/libraries/animation/src/Rig.h
@@ -172,32 +172,6 @@ public:
     // Regardless of who started the animations or how many, update the joints.
     void updateAnimations(float deltaTime, const glm::mat4& rootTransform, const glm::mat4& rigToWorldTransform);
 
-    // legacy
-    bool restoreJointPosition(int jointIndex, float fraction, float priority, const QVector<int>& freeLineage);
-
-    // legacy
-    float getLimbLength(int jointIndex, const QVector<int>& freeLineage,
-                        const glm::vec3 scale, const QVector<FBXJoint>& fbxJoints) const;
-
-    // legacy
-    glm::quat setJointRotationInBindFrame(int jointIndex, const glm::quat& rotation, float priority);
-
-    // legacy
-    glm::vec3 getJointDefaultTranslationInConstrainedFrame(int jointIndex);
-
-    // legacy
-    glm::quat setJointRotationInConstrainedFrame(int jointIndex, glm::quat targetRotation,
-                                                 float priority, float mix = 1.0f);
-
-    // legacy
-    bool getJointRotationInConstrainedFrame(int jointIndex, glm::quat& rotOut) const;
-
-    // legacy
-    glm::quat getJointDefaultRotationInParentFrame(int jointIndex);
-
-    // legacy
-    void clearJointStatePriorities();
-
     void updateFromControllerParameters(const ControllerParameters& params, float dt);
     void updateFromEyeParameters(const EyeParameters& params);
 
@@ -341,7 +315,7 @@ protected:
         float firstFrame;
         float lastFrame;
     };
-    
+
     struct RoleAnimState {
        RoleAnimState() {}
        RoleAnimState(const QString& roleId, const QString& urlIn, float fpsIn, bool loopIn, float firstFrameIn, float lastFrameIn) :
diff --git a/libraries/avatars-renderer/src/avatars-renderer/SkeletonModel.cpp b/libraries/avatars-renderer/src/avatars-renderer/SkeletonModel.cpp
index 557fbb8670..1112ccde60 100644
--- a/libraries/avatars-renderer/src/avatars-renderer/SkeletonModel.cpp
+++ b/libraries/avatars-renderer/src/avatars-renderer/SkeletonModel.cpp
@@ -241,18 +241,10 @@ bool SkeletonModel::getLeftShoulderPosition(glm::vec3& position) const {
     return getJointPositionInWorldFrame(getLastFreeJointIndex(getLeftHandJointIndex()), position);
 }
 
-float SkeletonModel::getLeftArmLength() const {
-    return getLimbLength(getLeftHandJointIndex());
-}
-
 bool SkeletonModel::getRightShoulderPosition(glm::vec3& position) const {
     return getJointPositionInWorldFrame(getLastFreeJointIndex(getRightHandJointIndex()), position);
 }
 
-float SkeletonModel::getRightArmLength() const {
-    return getLimbLength(getRightHandJointIndex());
-}
-
 bool SkeletonModel::getHeadPosition(glm::vec3& headPosition) const {
     return isActive() && getJointPositionInWorldFrame(getFBXGeometry().headJointIndex, headPosition);
 }
diff --git a/libraries/avatars-renderer/src/avatars-renderer/SkeletonModel.h b/libraries/avatars-renderer/src/avatars-renderer/SkeletonModel.h
index 0407a5b580..d82fce7412 100644
--- a/libraries/avatars-renderer/src/avatars-renderer/SkeletonModel.h
+++ b/libraries/avatars-renderer/src/avatars-renderer/SkeletonModel.h
@@ -68,9 +68,6 @@ public:
     /// \return whether or not the right shoulder joint was found
     bool getRightShoulderPosition(glm::vec3& position) const;
 
-    /// Returns the extended length from the right hand to its first free ancestor.
-    float getRightArmLength() const;
-
     /// Returns the position of the head joint.
     /// \return whether or not the head was found
     bool getHeadPosition(glm::vec3& headPosition) const;
diff --git a/libraries/render-utils/src/Model.cpp b/libraries/render-utils/src/Model.cpp
index f04c7e4cc0..c042c2fe29 100644
--- a/libraries/render-utils/src/Model.cpp
+++ b/libraries/render-utils/src/Model.cpp
@@ -1259,12 +1259,6 @@ void Model::updateClusterMatrices() {
     }
 }
 
-float Model::getLimbLength(int jointIndex) const {
-    const FBXGeometry& geometry = getFBXGeometry();
-    const QVector<int>& freeLineage = geometry.joints.at(jointIndex).freeLineage;
-    return _rig.getLimbLength(jointIndex, freeLineage, _scale, geometry.joints);
-}
-
 bool Model::maybeStartBlender() {
     if (isLoaded()) {
         const FBXGeometry& fbxGeometry = getFBXGeometry();
diff --git a/libraries/render-utils/src/Model.h b/libraries/render-utils/src/Model.h
index a7b46d2991..dcf1dda570 100644
--- a/libraries/render-utils/src/Model.h
+++ b/libraries/render-utils/src/Model.h
@@ -366,10 +366,6 @@ protected:
     void computeMeshPartLocalBounds();
     virtual void updateRig(float deltaTime, glm::mat4 parentTransform);
 
-    /// Computes and returns the extended length of the limb terminating at the specified joint and starting at the joint's
-    /// first free ancestor.
-    float getLimbLength(int jointIndex) const;
-
     /// Allow sub classes to force invalidating the bboxes
     void invalidCalculatedMeshBoxes() {
         _triangleSetsValid = false;