absolutely u have to shave ur beard before attending any interview with Emirates (or other airlines). They are not looking for handsome guys, but for a nice personality with a groomed appearance.
They don't care if we look better with berad, it's totally not acceptable to attend the OD or AD with a beard on ur face
u have to impress them, they wanna see how u will look like in uniform. If u get the job, u will have to shave before every flight.