Prune MapOpenSSLErrorSSL list.
Prune MapOpenSSLErrorSSL list.

OpenSSL's error codes are much less a small closed set of errors and more a
custom string, interned into a pre-set error code. There's not much sense in
enumerating a bunch of them and logging if we see an unknown one. New ones
get added willy-nilly[*].

Rather, we now put the error information into NetLog, which is a much more
useful way to get extra debugging anyway.

[*] Yeah, this is not a very good API as all consumers end up being very
fragile. How to fix that is still an open problem.

BUG=none

Review URL: https://codereview.chromium.org/1229273003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#364871}

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