Harald Alvestrand 22d32f1a6c Remove the KeyProtocol metric
Now that SDES is (largely) removed, this is no longer useful.

Bug: chromium:1365484
Change-Id: I3e626a7d5d83130a70958851de3df0aa27616bd2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/277781
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38278}
2022-10-03 14:20:17 +00:00
..
2019-01-28 11:17:00 +00:00
2022-05-12 18:34:33 +00:00
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