[orientation-event-tests] orientation-event: Update idlharness.js tests. (#5202)

Updates the embedded WebIDL for orientation-event/idlharness.html to
match the change made to DeviceMotionEvent(Init).interval,

https://github.com/w3c/deviceorientation/pull/40

View on GitHub: https://github.com/w3c/web-platform-tests/pull/5202

Received on Wednesday, 22 March 2017 20:06:11 UTC