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Some callback aliases were missed when I was taking out the BLE
authenticator code earlier this year. This removes them.

Change-Id: Ic69352e4fde6892821e9076f111d030299e9451f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2575156Reviewed-by: Nina Satragno <nsatragno@chromium.org>
Commit-Queue: Ken Buchanan <kenrb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833823}