diff --git a/src/ol/has.js b/src/ol/has.js
index 182eaea2ea..22d9166e49 100644
--- a/src/ol/has.js
+++ b/src/ol/has.js
@@ -80,15 +80,6 @@ _ol_has_.CANVAS = (
   })();
 
 
-/**
- * Indicates if DeviceOrientation is supported in the user's browser.
- * @const
- * @type {boolean}
- * @api
- */
-_ol_has_.DEVICE_ORIENTATION = 'DeviceOrientationEvent' in window;
-
-
 /**
  * Is HTML5 geolocation supported in the current browser?
  * @const