Examples: Fixed webxr_vr_panorama_depth.

examples/webxr_vr_panorama_depth.html

@@ -115,7 +115,7 @@
 
 				// If we are not presenting move the camera a little so the effect is visible
 
-				if ( renderer.xr.isPresenting() === false ) {
+				if ( renderer.xr.isPresenting === false ) {
 
 					var time = clock.getElapsedTime();