message: Remove ChaCha20Poly1305 type url as it is not supported to create key templates in C++/Python.
diff: @@ -38,8 +38,6 @@ _AES_GCM_SIV_KEY_TYPE_URL = (
  'type.googleapis.com/google.crypto.tink.AesGcmSivKey')
  _AES_CTR_HMAC_AEAD_KEY_TYPE_URL = (
  'type.googleapis.com/google.crypto.tink.AesCtrHmacAeadKey')
  -_CHACHA20_POLY1305_KEY_TYPE_URL = (
  - 'type.googleapis.com/google.crypto.tink.ChaCha20Poly1305Key')
  _XCHACHA20_POLY1305_KEY_TYPE_URL = (
  'type.googleapis.com/google.crypto.tink.XChaCha20Poly1305Key')
  