diff --git a/crates/block-producer/src/errors.rs b/crates/block-producer/src/errors.rs
index a546e5a9..18d4f7dc 100644
--- a/crates/block-producer/src/errors.rs
+++ b/crates/block-producer/src/errors.rs
@@ -120,21 +120,12 @@ pub enum BuildBatchError {
     )]
     TooManyAccountsInBatch(Vec<ProvenTransaction>),
 
-    #[error("Failed to create notes SMT: {0}")]
-    NotesSmtError(MerkleError, Vec<ProvenTransaction>),
-
-    #[error("Failed to get note paths: {0}")]
-    NotePathsError(NotePathsError, Vec<ProvenTransaction>),
-
     #[error("Duplicated unauthenticated transaction input note ID in the batch: {0}")]
     DuplicateUnauthenticatedNote(NoteId, Vec<ProvenTransaction>),
 
     #[error("Duplicated transaction output note ID in the batch: {0}")]
     DuplicateOutputNote(NoteId, Vec<ProvenTransaction>),
 
-    #[error("Unauthenticated transaction notes not found in the store: {0:?}")]
-    UnauthenticatedNotesNotFound(Vec<NoteId>, Vec<ProvenTransaction>),
-
     #[error("Note hashes mismatch for note {id}: (input: {input_hash}, output: {output_hash})")]
     NoteHashesMismatch {
         id: NoteId,
@@ -154,24 +145,6 @@ pub enum BuildBatchError {
     InjectedFailure(Vec<ProvenTransaction>),
 }
 
-impl BuildBatchError {
-    pub fn into_transactions(self) -> Vec<ProvenTransaction> {
-        match self {
-            BuildBatchError::TooManyInputNotes(_, txs) => txs,
-            BuildBatchError::TooManyNotesCreated(_, txs) => txs,
-            BuildBatchError::TooManyAccountsInBatch(txs) => txs,
-            BuildBatchError::NotesSmtError(_, txs) => txs,
-            BuildBatchError::NotePathsError(_, txs) => txs,
-            BuildBatchError::DuplicateUnauthenticatedNote(_, txs) => txs,
-            BuildBatchError::DuplicateOutputNote(_, txs) => txs,
-            BuildBatchError::UnauthenticatedNotesNotFound(_, txs) => txs,
-            BuildBatchError::NoteHashesMismatch { txs, .. } => txs,
-            BuildBatchError::AccountUpdateError { txs, .. } => txs,
-            BuildBatchError::InjectedFailure(txs) => txs,
-        }
-    }
-}
-
 // Block prover errors
 // =================================================================================================
 
@@ -199,18 +172,6 @@ pub enum BlockInputsError {
     GrpcClientError(String),
 }
 
-// Note paths errors
-// =================================================================================================
-
-#[allow(clippy::enum_variant_names)]
-#[derive(Debug, PartialEq, Eq, Error)]
-pub enum NotePathsError {
-    #[error("failed to parse protobuf message: {0}")]
-    ConversionError(#[from] ConversionError),
-    #[error("gRPC client failed with error: {0}")]
-    GrpcClientError(String),
-}
-
 // Block applying errors
 // =================================================================================================