message: Remove CHACHA20-POLY1305 from supported keys in C++ and Python.
diff: @@ -57,7 +57,7 @@ JavaScript is currently under development.
  | Primitive | C++ Implementations |
  | ------------------ | ------------------------------------------------------------------------------------------------ |
  -| AEAD | AES-GCM, AES-GCM-SIV, AES-CTR-HMAC, AES-EAX, KMS Envelope, CHACHA20-POLY1305, XCHACHA20-POLY1305 |
  +| AEAD | AES-GCM, AES-GCM-SIV, AES-CTR-HMAC, AES-EAX, KMS Envelope, XCHACHA20-POLY1305 |
  | Streaming AEAD | AES-GCM-HKDF-STREAMING, AES-CTR-HMAC-STREAMING |
  | Deterministic AEAD | AES-SIV |
  | MAC | HMAC-SHA2, AES-CMAC |
  @@ -91,7 +91,7 @@ Hybrid Encryption | ECIES with AEAD and HKDF
  Primitive | Python Implementations
  ------------------ | -----------------------------------------------------------------------------
  -AEAD | AES-GCM, AES-CTR-HMAC, AES-EAX, KMS Envelope, CHACHA20-POLY1305, XCHACHA20-POLY1305
  +AEAD | AES-GCM, AES-CTR-HMAC, AES-EAX, KMS Envelope, XCHACHA20-POLY1305
  Deterministic AEAD | AES-SIV
  MAC | HMAC-SHA2
  PRF | HKDF-SHA2, HMAC-SHA2, AES-CMAC
  