ADR-50: Remove unsupported header mention (#374)

* ADR-50: Remove unsupported header mention

Signed-off-by: Piotr Piotrowski <[email protected]>

* FIx typo

Co-authored-by: JP Sugarbroad <[email protected]>

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Signed-off-by: Piotr Piotrowski <[email protected]>
Co-authored-by: JP Sugarbroad <[email protected]>

Author: piotrpio

adr/ADR-50.md

@@ -68,7 +68,7 @@ The server will respond with the following errors if committing a batch fails:
  * The server will limit the `Nats-Batch-ID` to 64 characters and response with a error Pub Ack if its too long
  * Server will reject messages for which the batch is unknown with a error Pub Ack
  * If messages in a batch is received and any gap is detected the batch will be rejected with a error Pub Ack
- * Check properties like `ExpectedLastSeq` using the sequences found in the stream prior to the batch, at the time when the batch is committed under lock for consistency. Rejects the batch with an error Pub Ack if any message fails these checks. Only the first message of the batch may contain `Nats-Expected-Last-Sequence` or `Nats-Expected-Last-Msg-Id`. Checks using `Nats-Expected-Last-Subject-Sequence` can only be performed if prior entries in the batch not also write to that same subject.
+ * Check properties like `ExpectedLastSeq` using the sequences found in the stream prior to the batch, at the time when the batch is committed under lock for consistency. Rejects the batch with an error Pub Ack if any message fails these checks. Only the first message of the batch may contain `Nats-Expected-Last-Sequence`. Checks using `Nats-Expected-Last-Subject-Sequence` can only be performed if prior entries in the batch do not also write to that same subject.
  * Abandon without error reply anywhere a batch that has not had messages for 10 seconds, an advisory will be raised on abandonment in this case
  * Send a pub ack on the final message that includes a new property `Batch:ID` and `Count:10`. The sequence in the ack would be the final message sequence, previous messages in the batch would be the preceding sequences
  * If a stream is operating on the `PersistMode: async` mode, any batch published to it must fail