Historical note: V2 introducers have been around for three years
now (released in 1.10.0), so it's time to drop v1. This branch removes a
lot of fallback code, and tests which exercised it. refs ticket:2784
This patch removes some now-unused code: v1-related support functions on
the client, "stub-client" handlers, and v1-tolerant remote methods on
the server. The unit tests have been cleaned up a bit too, now that
there are fewer cases to exercise.
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