Remove dtls1_enc.

(Imported from upstream's 4b87706d20f0a2fdf2e8f1b90256e141c487ef47 and
eceef8fb865eb5de329b27ea472d4fdea4c290fe.)

Dead code.

Change-Id: I58120c3a9c42cb9db27f404774778222c3bb642a
Reviewed-on: https://boringssl-review.googlesource.com/2479
Reviewed-by: Adam Langley <agl@google.com>
3 files changed