no need to (re) implement the interface

src/Cameras/XR/features/WebXRAnchorSystem.ts

@@ -52,7 +52,7 @@ let anchorIdProvider = 0;
  * will use the frame to create an anchor and not the session or a detected plane
  * For further information see https://github.com/immersive-web/anchors/
  */
-export class WebXRAnchorSystem extends WebXRAbstractFeature implements IWebXRFeature {
+export class WebXRAnchorSystem extends WebXRAbstractFeature {
 
     /**
      * The module's name

src/Cameras/XR/features/WebXRBackgroundRemover.ts

@@ -35,7 +35,7 @@ export interface IWebXRBackgroundRemoverOptions {
 /**
  * A module that will automatically disable background meshes when entering AR and will enable them when leaving AR.
  */
-export class WebXRBackgroundRemover extends WebXRAbstractFeature implements IWebXRFeature {
+export class WebXRBackgroundRemover extends WebXRAbstractFeature {
 
     /**
      * The module's name

src/Cameras/XR/features/WebXRControllerPointerSelection.ts

@@ -60,7 +60,7 @@ export interface IWebXRControllerPointerSelectionOptions {
 /**
  * A module that will enable pointer selection for motion controllers of XR Input Sources
  */
-export class WebXRControllerPointerSelection extends WebXRAbstractFeature implements IWebXRFeature {
+export class WebXRControllerPointerSelection extends WebXRAbstractFeature {
 
     /**
      * The module's name

src/Cameras/XR/features/WebXRControllerTeleportation.ts

@@ -83,7 +83,7 @@ export interface IWebXRTeleportationOptions {
  * When enabled and attached, the feature will allow a user to move aroundand rotate in the scene using
  * the input of the attached controllers.
  */
-export class WebXRMotionControllerTeleportation extends WebXRAbstractFeature implements IWebXRFeature {
+export class WebXRMotionControllerTeleportation extends WebXRAbstractFeature {
     /**
      * The module's name
      */

src/Cameras/XR/features/WebXRHitTestLegacy.ts

@@ -40,7 +40,7 @@ export interface IWebXRHitResult {
  * Hit test (or raycasting) is used to interact with the real world.
  * For further information read here - https://github.com/immersive-web/hit-test
  */
-export class WebXRHitTestLegacy extends WebXRAbstractFeature implements IWebXRFeature {
+export class WebXRHitTestLegacy extends WebXRAbstractFeature {
 
     /**
      * The module's name

src/Cameras/XR/features/WebXRPlaneDetector.ts

@@ -45,7 +45,7 @@ let planeIdProvider = 0;
  * The plane detector is used to detect planes in the real world when in AR
  * For more information see https://github.com/immersive-web/real-world-geometry/
  */
-export class WebXRPlaneDetector extends WebXRAbstractFeature implements IWebXRFeature {
+export class WebXRPlaneDetector extends WebXRAbstractFeature {
 
     /**
      * The module's name