The consumers have all been updated, so we can move EVP_aead_chacha20_poly1305
to its final state. Unfortunately, the _rfc7539-suffixed version will need to
stick around for just a hair longer. Also the tls1.h macros, but the remaining
consumers are okay with that changing underneath them.
Change-Id: Ibbb70ec1860d6ac6a7e1d7b45e70fe692bf5ebe5
Reviewed-on: https://boringssl-review.googlesource.com/6600
Reviewed-by: Adam Langley <agl@google.com>
8ffab72683