[stable2409] Backport #6662 (#6802)

Backport #6662 into `stable2409` from eskimor.

See the
[documentation](https://github.com/paritytech/polkadot-sdk/blob/master/docs/BACKPORT.md)
on how to use this bot.

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Co-authored-by: eskimor <eskimor@users.noreply.github.com>
Co-authored-by: Andrei Sandu <54316454+sandreim@users.noreply.github.com>

polkadot/node/network/collator-protocol/src/error.rs

@@ -102,7 +102,7 @@ impl SecondingError {
 			self,
 			PersistedValidationDataMismatch |
 				CandidateHashMismatch |
-				Duplicate | ParentHeadDataMismatch
+				ParentHeadDataMismatch
 		)
 	}
 }