docs: modify enum comment

Google APIs · copybara-github · commit 882633d32e4d · 2025-01-07T15:20:47.000-08:00
PiperOrigin-RevId: 713058878
diff --git a/google/cloud/kms/v1/resources.proto b/google/cloud/kms/v1/resources.proto
@@ -347,7 +347,6 @@ message CryptoKeyVersion {
   // The suffix following `HMAC_` corresponds to the hash algorithm being used
   // (eg. SHA256).
   //
-  // Algorithms beginning with `PQ_` are post-quantum.
   //
   // For more information, see [Key purposes and algorithms]
   // (https://cloud.google.com/kms/docs/algorithms).
