fix warnings

Author: irevoire

src/spaces/simple.rs

@@ -1,9 +1,9 @@
-#[cfg(target_arch = "x86_64")]
-use super::simple_avx::*;
+// #[cfg(target_arch = "x86_64")]
+// use super::simple_avx::*;
 #[cfg(all(target_arch = "aarch64", target_feature = "neon"))]
 use super::simple_neon::*;
-#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
-use super::simple_sse::*;
+// #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
+// use super::simple_sse::*;
 use crate::unaligned_vector::{BinaryQuantized, UnalignedVector};
 
 #[cfg(target_arch = "x86_64")]