STUN servers don't do allocate requests, just binding requests. Fix the description of onicecandidateerror accordingly. BUG=None Change-Id: I5698f23b50de46eb76175d1af5e88b605cd152f0 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/250142 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com> Cr-Commit-Position: refs/heads/main@{#35876}