diff --git a/crates/ml/src/transformers/features.rs b/crates/ml/src/transformers/features.rs
deleted file mode 100644
index f692535bb..000000000
--- a/crates/ml/src/transformers/features.rs
+++ /dev/null
@@ -1,126 +0,0 @@
-//! # Financial Feature Engineering for HFT Transformers
-//!
-//! This module implements state-of-the-art feature extraction for financial
-//! market microstructure data, optimized for transformer model input.
-//!
-//! ## Key Features
-//!
-//! - **Order Book Imbalance**: Bid/ask volume imbalances and pressure
-//! - **Trade Flow Analysis**: Aggressive vs passive order flow patterns
-//! - **Microstructure Signals**: Spread, volatility, intensity measures
-//! - **Temporal Features**: Time-of-day, volume clocks, event sequences
-//! - **Cross-Asset Signals**: Correlation and cointegration features
-//!
-//! ## Performance Optimizations
-//!
-//! - Pre-allocated feature vectors for zero-allocation extraction
-//! - SIMD-optimized mathematical operations
-//! - Incremental updates for streaming data
-//! - <20μs feature extraction from raw market data
-
-use common::types::{Price, Quantity, Symbol};
-use std::collections::VecDeque;
-
-use ml_core::native_types::{NativeDevice, NativeTensor};
-use ml_core::cuda_autograd::GpuTensor;
-use chrono::{DateTime, Datelike, Timelike, Utc};
-use serde::{Deserialize, Serialize};
-
-use super::*;
-
-
-    #[test]
-    fn test_feature_config_default() {
-        let config = FeatureConfig::default();
-        assert_eq!(config.lookback_window, 100);
-        assert_eq!(config.book_levels, 5);
-        assert!(config.use_order_book_features);
-        assert!(config.use_trade_flow_features);
-    }
-
-    #[test]
-    fn test_market_microstructure_from_tick() {
-        let tick = MarketTick::new(
-            Symbol::new("EURUSD")?,
-            Price::from_f64(1.1000).unwrap(), // bid_price
-            Price::from_f64(1.1002).unwrap(), // ask_price
-            Price::from_f64(1.1001).unwrap(), // last_price
-            Volume::new(1000.0),   // volume
-            Quantity::from(500), // bid_size
-            Quantity::from(300), // ask_size
-            1234567890,          // timestamp_us
-        );
-
-        let micro = MarketMicrostructure::from_tick(&tick);
-        assert_eq!(micro.bid_price, tick.bid_price);
-        assert_eq!(micro.ask_price, tick.ask_price);
-        assert!(micro.book_imbalance > 0.0); // More bid volume than ask
-    }
-
-    #[test]
-    fn test_trade_flow_features() {
-        let mut trades = Vec::new();
-
-        // Create sample trades
-        for i in 0..10 {
-            let mut micro = MarketMicrostructure {
-                timestamp: 1234567890 + i as u64 * 1000,
-                bid_price: Price::from_f64(1.1000).unwrap(),
-                ask_price: Price::from_f64(1.1002).unwrap(),
-                bid_volume: Volume::new(100.0),
-                ask_volume: Volume::new(100.0),
-                mid_price: Price::from_f64(1.1001).unwrap(),
-                spread: Price::from_f64(0.0002).unwrap(),
-                last_price: Some(Price::from_f64(1.1001).unwrap()),
-                last_volume: Some(Volume::new(100 + i as u64 * 10)),
-                trade_direction: if i % 2 == 0 { 1 } else { -1 },
-                book_imbalance: 0.0,
-                vwap: None,
-                trade_count: 1,
-            };
-            trades.push(micro);
-        }
-
-        let features = TradeFlowFeatures::extract(&trades, 1.0);
-        let vector = features.to_vector();
-
-        assert_eq!(vector.len(), 8);
-        assert!(features.trade_intensity > 0.0);
-        assert!(features.avg_trade_size > 0.0);
-    }
-
-    #[test]
-    fn test_percentile_calculation() {
-        let data = vec![1.0, 2.0, 3.0, 4.0, 5.0];
-        assert_eq!(percentile(&data, 0.0), 1.0);
-        assert_eq!(percentile(&data, 0.5), 3.0);
-        assert_eq!(percentile(&data, 1.0), 5.0);
-
-        let empty_data = vec![];
-        assert_eq!(percentile(&empty_data, 0.5), 0.0);
-    }
-
-    #[tokio::test]
-    async fn test_feature_extractor() {
-        let config = FeatureConfig::default();
-        let device = NativeDevice::Cuda(0);
-        let mut extractor = FinancialFeatureExtractor::new(config, device);
-
-        let tick = MarketTick::new(
-            Symbol::new("EURUSD")?,
-            Price::from_f64(1.1000).unwrap(), // bid_price
-            Price::from_f64(1.1002).unwrap(), // ask_price
-            Price::from_f64(1.1001).unwrap(), // last_price
-            Volume::new(1000.0),   // volume
-            Quantity::from(500), // bid_size
-            Quantity::from(300), // ask_size
-            1234567890,          // timestamp_us
-        );
-
-        let features_tensor = extractor.extract_features(&tick)?;
-        let shape = features_tensor.shape();
-
-        assert_eq!(shape.dims(), &[1, 32]); // Default output dimension
-        assert!(extractor.average_extraction_time_us() > 0.0);
-    }
-}