Removed state transition bytecode from the local testnet (#2215)

Closes #2200

## Checklist
- [x] New behavior is reflected in tests

---------

Co-authored-by: acerone85 <andrea.cerone@gmail.com>

.gitignore

@@ -16,4 +16,5 @@ benches/benches-outputs/src/test_gas_costs_output.rs
 node_modules/
 package-lock.json
 package.json
+bin/fuel-core/chainspec/local-testnet/state_transition_bytecode.wasm
 

crates/chain-config/src/config/chain.rs

@@ -54,7 +54,7 @@ impl Default for ChainConfig {
                 fuel_core_types::blockchain::header::LATEST_STATE_TRANSITION_VERSION,
             ),
             // Note: It is invalid bytecode.
-            state_transition_bytecode: vec![123; 1024],
+            state_transition_bytecode: vec![],
             consensus: ConsensusConfig::default_poa(),
         }
     }
@@ -78,13 +78,17 @@ impl ChainConfig {
             })?;
 
         let bytecode_path = path.with_file_name(BYTECODE_NAME);
-        let bytecode = std::fs::read(bytecode_path).map_err(|e| {
-            anyhow::Error::new(e).context(format!(
-                "an error occurred while loading the state transition bytecode: {:?}",
-                path.to_str()
-            ))
-        })?;
 
+        let bytecode = if bytecode_path.exists() {
+            std::fs::read(bytecode_path).map_err(|e| {
+                anyhow::Error::new(e).context(format!(
+                    "an error occurred while loading the state transition bytecode: {:?}",
+                    path.to_str()
+                ))
+            })?
+        } else {
+            Vec::new()
+        };
         chain_config.state_transition_bytecode = bytecode;
 
         Ok(chain_config)

tests/tests/local_node.rs

@@ -11,7 +11,6 @@ use fuel_core_types::{
     blockchain::header::LATEST_STATE_TRANSITION_VERSION,
     fuel_tx::GasCosts,
 };
-use fuel_core_upgradable_executor::WASM_BYTECODE;
 use test_helpers::fuel_core_driver::FuelCoreDriver;
 
 #[test]
@@ -29,7 +28,6 @@ fn local_chainconfig_validity() -> anyhow::Result<()> {
         .set_gas_costs(benchmark_gas_costs);
 
     if env::var_os("OVERRIDE_CHAIN_CONFIGS").is_some() {
-        chain_config.state_transition_bytecode = WASM_BYTECODE.to_vec();
         chain_config.genesis_state_transition_version =
             Some(LATEST_STATE_TRANSITION_VERSION);
         std::fs::remove_file(&stored_snapshot.chain_config)?;