Remove the non-RFC 7539 variants of ChaCha20Poly1305 crypters in QUIC
since the RFC 7539 variants are now enabled in Chrome stable.

R=davidben@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1854273002

Cr-Commit-Position: refs/heads/master@{#385140}
16 files changed