Stored input device IDs are not cleaned up whenever getUserMedia fails
with `NotFoundError` (i.e.: device not found). This causes a couple of
issues whenever skipEchoIfPreviousDevice is enabled:
- An unnecessary error screen if the user retries audio from scratch
(it should just go straight to the audio settings modal)
- A retry loop if no other devices are present in the system
Guarantee that stored input device IDs are cleared up whenever
getUserMedia fails with error name `NotFoundError`. This both the retry
loop and the unnecessary error screen.
c2161b9a14