node-data: remove iteration check from msg deserialize

node-data/src/ledger/header.rs

@@ -7,7 +7,7 @@
 use serde::Serialize;
 
 use super::*;
-use crate::message::{ConsensusHeader, MESSAGE_MAX_ITER};
+use crate::message::ConsensusHeader;
 
 pub type Seed = Signature;
 #[derive(Eq, PartialEq, Clone, Serialize)]
@@ -154,14 +154,6 @@ impl Header {
         let gas_limit = Self::read_u64_le(r)?;
         let iteration = Self::read_u8(r)?;
 
-        // Iteration is 0-based
-        if iteration >= MESSAGE_MAX_ITER {
-            return Err(io::Error::new(
-                io::ErrorKind::InvalidData,
-                format!("Invalid iteration {iteration})"),
-            ));
-        }
-
         let prev_block_cert = Attestation::read(r)?;
         let failed_iterations = IterationsInfo::read(r)?;
 

node-data/src/message.rs

@@ -28,9 +28,6 @@ use crate::{bls, ledger, Serializable, StepName};
 pub const TOPIC_FIELD_POS: usize = 1 + 2 + 2;
 pub const PROTOCOL_VERSION: Version = Version(1, 0, 2);
 
-/// Max value for iteration.
-pub const MESSAGE_MAX_ITER: u8 = 50;
-
 /// Block version
 pub const BLOCK_HEADER_VERSION: u8 = 1;
 
@@ -370,14 +367,6 @@ impl Serializable for ConsensusHeader {
         let round = Self::read_u64_le(r)?;
         let iteration = Self::read_u8(r)?;
 
-        // Iteration is 0-based
-        if iteration >= MESSAGE_MAX_ITER {
-            return Err(io::Error::new(
-                io::ErrorKind::InvalidData,
-                format!("Invalid iteration {iteration})"),
-            ));
-        }
-
         Ok(ConsensusHeader {
             prev_block_hash,
             round,