Remove internal match order validity guard

crates/workers/matching-engine/matching-engine-worker/src/manager/matching/internal_engine.rs

@@ -63,12 +63,6 @@ impl MatchingEngineExecutor {
             },
             Err(e) => {
                 error!("internal match settlement failed for {} x {}: {e}", other_id, order_id,);
-
-                // Check whether matching should continue
-                if !self.order_still_valid(&order_id).await? {
-                    info!("account has changed, stopping internal matching engine...");
-                    return Ok(());
-                }
             },
         }
 
@@ -153,20 +147,6 @@ impl MatchingEngineExecutor {
         })
     }
 
-    /// TODO: Update this comment when we re-implement
-    /// Check whether a wallet is still valid. This amounts to checking:
-    ///     1. Whether the wallet's known nullifier is still valid. This may be
-    ///        false if the wallet has been updated since a match was attempted
-    ///     2. Whether the wallet's queue is still empty and unpaused.
-    ///        Concurrent matches from elsewhere in the relayer may cause this
-    ///        second condition to be false
-    ///
-    /// This check may be executed after a match settlement fails
-    async fn order_still_valid(&self, order_id: &OrderId) -> Result<bool, MatchingEngineError> {
-        warn!("Re-implement order still valid check");
-        Ok(true)
-    }
-
     /// Fetch the privacy ring for an order
     async fn get_order_ring(&self, order_id: &OrderId) -> Result<PrivacyRing, MatchingEngineError> {
         self.state.get_order_ring(order_id).await?.ok_or_else(|| {