diff --git a/crates/sovereign-sdk/adapters/risc0-bonsai/src/lib.rs b/crates/sovereign-sdk/adapters/risc0-bonsai/src/lib.rs
index 1a6b8b2df..15cb3a716 100644
--- a/crates/sovereign-sdk/adapters/risc0-bonsai/src/lib.rs
+++ b/crates/sovereign-sdk/adapters/risc0-bonsai/src/lib.rs
@@ -10,9 +10,6 @@ use sov_rollup_interface::zk::Matches;
 #[cfg(feature = "native")]
 pub mod host;
 
-#[cfg(feature = "bench")]
-pub mod metrics;
-
 /// Uniquely identifies a Risc0 binary. Roughly equivalent to
 /// the hash of the ELF file.
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
diff --git a/crates/sovereign-sdk/adapters/risc0-bonsai/src/metrics.rs b/crates/sovereign-sdk/adapters/risc0-bonsai/src/metrics.rs
deleted file mode 100644
index d217f2b35..000000000
--- a/crates/sovereign-sdk/adapters/risc0-bonsai/src/metrics.rs
+++ /dev/null
@@ -1,49 +0,0 @@
-//! Defines utilities for collecting runtime metrics from inside a Risc0 VM
-use std::collections::HashMap;
-
-use anyhow::Context;
-use once_cell::sync::Lazy;
-use parking_lot::Mutex;
-use risc0_zkvm::Bytes;
-
-/// A global hashmap mapping metric names to their values.
-pub static GLOBAL_HASHMAP: Lazy<Mutex<HashMap<String, (u64, u64)>>> =
-    Lazy::new(|| Mutex::new(HashMap::new()));
-
-/// Increments the requested metric by the given value, creating a
-/// new entry in the global map if necessary.
-fn add_value(metric: String, value: u64) {
-    let mut hashmap = GLOBAL_HASHMAP.lock();
-    hashmap
-        .entry(metric)
-        .and_modify(|(sum, count)| {
-            *sum += value;
-            *count += 1;
-        })
-        .or_insert((value, 1));
-}
-
-/// Deserialize a `Bytes` into a null-separated `(String, u64)` tuple. This function
-/// expects its arguments to match the format of arguments to Risc0's io callbacks.
-fn deserialize_custom(serialized: Bytes) -> Result<(String, u64), anyhow::Error> {
-    let null_pos = serialized
-        .iter()
-        .position(|&b| b == 0)
-        .context("Could not find separator in provided bytes")?;
-    let (string_bytes, size_bytes_with_null) = serialized.split_at(null_pos);
-    let size_bytes = &size_bytes_with_null[1..]; // Skip the null terminator
-    let string = String::from_utf8(string_bytes.to_vec())?;
-    let size = u64::from_ne_bytes(size_bytes.try_into()?); // Convert bytes back into usize
-    Ok((string, size))
-}
-
-/// A custom callback for extracting metrics from the Risc0 zkvm.
-///
-/// When the "bench" feature is enabled, this callback is registered as a syscall
-/// in the Risc0 VM and invoked whenever a function annotated with the [`sov-zk-cycle-utils::cycle_tracker`]
-/// macro is invoked.
-pub fn metrics_callback(input: Bytes) -> Result<Bytes, anyhow::Error> {
-    let met_tuple = deserialize_custom(input)?;
-    add_value(met_tuple.0, met_tuple.1);
-    Ok(Bytes::new())
-}