diff --git a/src/lang/deprecated.js b/src/lang/deprecated.js
index 52011e17c5..32c8ba80f7 100644
--- a/src/lang/deprecated.js
+++ b/src/lang/deprecated.js
@@ -127,15 +127,3 @@ export class DroptargetEntity extends DropTarget {
         super(x, y, settings.width, settings.height);
     }
 }
-
-// deprecated event
-event.on(event.WEBGL_ONCONTEXT_LOST, function(...args) {
-    warning("event.WEBGL_ONCONTEXT_LOST", "event.ONCONTEXT_LOST", "10.7.0");
-    event.emit(event.ONCONTEXT_LOST, ...args);
-});
-
-// deprecated event
-event.on(event.WEBGL_ONCONTEXT_RESTORED, function(...args) {
-    warning("event.WEBGL_ONCONTEXT_RESTORED", "event.ONCONTEXT_RESTORED", "10.7.0");
-    event.emit(event.ONCONTEXT_RESTORED, ...args);
-});
diff --git a/src/system/event.js b/src/system/event.js
index e790c9e474..2704989cb7 100644
--- a/src/system/event.js
+++ b/src/system/event.js
@@ -423,34 +423,6 @@ export const WINDOW_ONSCROLL = "globalThis.onscroll";
  */
 export const VIEWPORT_ONCHANGE = "viewport.onchange";
 
-/**
- * Event for when WebGL context is lost <br>
- * Data passed : {me.WebGLRenderer} the current webgl renderer instance
- * @public
- * @constant
- * @type {string}
- * @name WEBGL_ONCONTEXT_LOST
- * @memberof event
- * @deprecated
- * @see event.ONCONTEXT_LOST
- */
-export const WEBGL_ONCONTEXT_LOST = "renderer.webglcontextlost";
-
-
-/**
- * Event for when WebGL context is restored <br>
- * Data passed : {me.WebGLRenderer} the current webgl renderer instance
- * @public
- * @constant
- * @type {string}
- * @name WEBGL_ONCONTEXT_RESTORED
- * @memberof event
- * @deprecated
- * @see event.ONCONTEXT_RESTORED
- */
-export const WEBGL_ONCONTEXT_RESTORED = "renderer.webglcontextrestored";
-
-
 /**
  * Event for when the current context is lost <br>
  * Data passed : {me.Renderer} the current renderer instance