message: Remove wrong entry from key_templates_.
  The curves used are different.
diff: @@ -87,8 +87,6 @@ KeysetImpl::KeysetImpl() {
  EciesP256CompressedHkdfHmacSha256Aes128CtrHmacSha256();
  key_templates_["ECIES_P256_HKDF_HMAC_SHA256_XCHACHA20_POLY1305"] = crypto::
  tink::HybridKeyTemplates::EciesX25519HkdfHmacSha256XChaCha20Poly1305();
  - key_templates_["ECIES_P256_HKDF_HMAC_SHA256_AES256_SIV"] = crypto::tink::
  - HybridKeyTemplates::EciesX25519HkdfHmacSha256DeterministicAesSiv();
  key_templates_["AES_CMAC"] = crypto::tink::MacKeyTemplates::AesCmac();
  key_templates_["HMAC_SHA256_128BITTAG"] =
  crypto::tink::MacKeyTemplates::HmacSha256HalfSizeTag();
  