diff --git a/src/svm/kernel/rbf.rs b/src/svm/kernel/rbf.rs
index 9cf7428..844adc4 100644
--- a/src/svm/kernel/rbf.rs
+++ b/src/svm/kernel/rbf.rs
@@ -34,53 +34,9 @@ fn compute_core(rbf: Rbf, vectors: &MatSimd<f32x8, Rows>, feature: &VecSimd<f32x
     }
 }
 
-#[cfg(any(target_arch = "x86_64", target_arch = "x86"))]
-#[target_feature(enable = "avx")]
-#[inline]
-unsafe fn compute_avx(rbf: Rbf, vectors: &MatSimd<f32x8, Rows>, feature: &VecSimd<f32x8>, output: &mut [f64]) {
-    compute_core(rbf, vectors, feature, output);
-}
-
-#[cfg(any(target_arch = "x86_64", target_arch = "x86"))]
-#[target_feature(enable = "avx2")]
-#[inline]
-unsafe fn compute_avx2(rbf: Rbf, vectors: &MatSimd<f32x8, Rows>, feature: &VecSimd<f32x8>, output: &mut [f64]) {
-    compute_core(rbf, vectors, feature, output);
-}
-
-#[cfg(target_arch = "aarch64")]
-#[target_feature(enable = "neon")]
-#[inline]
-unsafe fn compute_neon(rbf: Rbf, vectors: &MatSimd<f32x8, Rows>, feature: &VecSimd<f32x8>, output: &mut [f64]) {
-    compute_core(rbf, vectors, feature, output);
-}
-
-#[cfg(any(target_arch = "x86_64", target_arch = "x86"))]
 #[inline]
 fn compute(rbf: Rbf, vectors: &MatSimd<f32x8, Rows>, feature: &VecSimd<f32x8>, output: &mut [f64]) {
-    if is_x86_feature_detected!("avx2") {
-        unsafe { compute_avx2(rbf, vectors, feature, output) }
-    } else if is_x86_feature_detected!("avx") {
-        unsafe { compute_avx(rbf, vectors, feature, output) }
-    } else {
-        compute_core(rbf, vectors, feature, output);
-    }
-}
-
-#[cfg(target_arch = "aarch64")]
-#[inline]
-fn compute(rbf: Rbf, vectors: &MatSimd<f32x8, Rows>, feature: &VecSimd<f32x8>, output: &mut [f64]) {
-    if std::arch::is_aarch64_feature_detected!("neon") {
-        unsafe { compute_neon(rbf, vectors, feature, output) }
-    } else {
-        compute_core(rbf, vectors, feature, output)
-    }
-}
-
-#[cfg(not(any(target_arch = "x86_64", target_arch = "x86", target_arch = "aarch64")))]
-#[inline]
-fn compute(rbf: Rbf, vectors: &MatSimd<f32x8, Rows>, feature: &VecSimd<f32x8>, output: &mut [f64]) {
-    compute_core(rbf, vectors, feature, output)
+    compute_core(rbf, vectors, feature, output);
 }
 
 impl KernelDense for Rbf {