On the off chance that the beard might be off-putting to even one person on the panel, why risk it?
You can always grow it back once you've got the job. Interviewers don't care if you think you look better with a beard or not, they want you to look their definition of clean, neat and industrious. A very short beard runs the risk of looking you were too lazy to shave, especially of the panel is comprised of older people. They don't know you, so they use outward appearances for clues. Sure, you "should" be hired because you're the best candidate for the job, but interviews don't always work that way.
To put it another way, it is worth that hefty pay raise to go without a beard for a while? Only you can decide.