diff --git a/crates/blockifier/src/transaction/transaction_utils.rs b/crates/blockifier/src/transaction/transaction_utils.rs
deleted file mode 100644
index acc2190176..0000000000
--- a/crates/blockifier/src/transaction/transaction_utils.rs
+++ /dev/null
@@ -1,40 +0,0 @@
-use starknet_api::transaction::TransactionVersion;
-
-use crate::execution::call_info::CallInfo;
-use crate::execution::contract_class::ContractClass;
-use crate::transaction::errors::TransactionExecutionError;
-
-pub fn update_remaining_gas(remaining_gas: &mut u64, call_info: &CallInfo) {
-    *remaining_gas -= call_info.execution.gas_consumed;
-}
-
-pub fn verify_contract_class_version(
-    contract_class: &ContractClass,
-    declare_version: TransactionVersion,
-) -> Result<(), TransactionExecutionError> {
-    match contract_class {
-        // TODO: Make TransactionVersion an enum and use match here.
-        ContractClass::V0(_) => {
-            if declare_version == TransactionVersion::ZERO
-                || declare_version == TransactionVersion::ONE
-            {
-                return Ok(());
-            }
-            Err(TransactionExecutionError::ContractClassVersionMismatch {
-                declare_version,
-                cairo_version: 0,
-            })
-        }
-        ContractClass::V1(_) | ContractClass::V1Native(_) => {
-            if declare_version == TransactionVersion::TWO
-                || declare_version == TransactionVersion::THREE
-            {
-                return Ok(());
-            }
-            Err(TransactionExecutionError::ContractClassVersionMismatch {
-                declare_version,
-                cairo_version: 1,
-            })
-        }
-    }
-}