chore(l1): renaming to remove metrics_ prefix from file names (#5385)

**Motivation**

This was needed before when we didn't had a `/metrics` folder, now the
prefix is unnecessary

**Description**

remove unnecessary `metrics_` prefix from metric modules

Closes #5378

Author: rodrigo-o

cmd/ethrex/initializers.rs

@@ -121,7 +121,7 @@ pub fn open_store(datadir: &Path) -> Store {
         #[cfg(feature = "rocksdb")]
         let engine_type = EngineType::RocksDB;
         #[cfg(feature = "metrics")]
-        ethrex_metrics::metrics_process::set_datadir_path(datadir.to_path_buf());
+        ethrex_metrics::process::set_datadir_path(datadir.to_path_buf());
         Store::new(datadir, engine_type).expect("Failed to create Store")
     }
 }

crates/blockchain/blockchain.rs

@@ -52,7 +52,7 @@ use tokio_util::sync::CancellationToken;
 use vm::StoreVmDatabase;
 
 #[cfg(feature = "metrics")]
-use ethrex_metrics::metrics_blocks::METRICS_BLOCKS;
+use ethrex_metrics::blocks::METRICS_BLOCKS;
 
 #[cfg(feature = "c-kzg")]
 use ethrex_common::types::BlobsBundle;

crates/blockchain/fork_choice.rs

@@ -110,7 +110,7 @@ pub async fn apply_fork_choice(
         .await?;
 
     metrics!(
-        use ethrex_metrics::metrics_blocks::METRICS_BLOCKS;
+        use ethrex_metrics::blocks::METRICS_BLOCKS;
 
         METRICS_BLOCKS.set_head_height(head.number);
     );

crates/blockchain/metrics/api.rs

@@ -3,8 +3,7 @@ use axum::{Router, routing::get};
 use crate::profiling::gather_profiling_metrics;
 
 use crate::{
-    MetricsApiError, metrics_blocks::METRICS_BLOCKS, metrics_process::METRICS_PROCESS,
-    metrics_transactions::METRICS_TX,
+    MetricsApiError, blocks::METRICS_BLOCKS, process::METRICS_PROCESS, transactions::METRICS_TX,
 };
 
 pub async fn start_prometheus_metrics_api(

crates/blockchain/metrics/metrics_blocks.rs renamed to crates/blockchain/metrics/blocks.rs

@@ -1,15 +1,15 @@
 #[cfg(feature = "api")]
 pub mod api;
+#[cfg(any(feature = "api", feature = "metrics"))]
+pub mod blocks;
 #[cfg(feature = "api")]
 pub mod l2;
 #[cfg(any(feature = "api", feature = "metrics"))]
-pub mod metrics_blocks;
-#[cfg(any(feature = "api", feature = "metrics"))]
-pub mod metrics_process;
-#[cfg(any(feature = "api", feature = "transactions"))]
-pub mod metrics_transactions;
+pub mod process;
 #[cfg(feature = "api")]
 pub mod profiling;
+#[cfg(any(feature = "api", feature = "transactions"))]
+pub mod transactions;
 
 /// A macro to conditionally enable metrics-related code.
 ///

crates/blockchain/metrics/mod.rs

@@ -27,9 +27,9 @@ use ethrex_storage::{Store, error::StoreError};
 use ethrex_metrics::metrics;
 
 #[cfg(feature = "metrics")]
-use ethrex_metrics::metrics_blocks::METRICS_BLOCKS;
+use ethrex_metrics::blocks::METRICS_BLOCKS;
 #[cfg(feature = "metrics")]
-use ethrex_metrics::metrics_transactions::{METRICS_TX, MetricsTxType};
+use ethrex_metrics::transactions::{METRICS_TX, MetricsTxType};
 use tokio_util::sync::CancellationToken;
 
 use crate::{

crates/blockchain/metrics/metrics_process.rs renamed to crates/blockchain/metrics/process.rs

@@ -33,7 +33,7 @@ use super::errors::BlockProducerError;
 
 use ethrex_metrics::metrics;
 #[cfg(feature = "metrics")]
-use ethrex_metrics::{metrics_blocks::METRICS_BLOCKS, metrics_transactions::METRICS_TX};
+use ethrex_metrics::{blocks::METRICS_BLOCKS, transactions::METRICS_TX};
 
 #[derive(Clone)]
 pub enum CallMessage {