fix more warnings

Author: irevoire

src/spaces/mod.rs

@@ -1,10 +1,10 @@
 pub mod simple;
 
-#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
-mod simple_sse;
+// #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
+// mod simple_sse;
 
-#[cfg(target_arch = "x86_64")]
-mod simple_avx;
+// #[cfg(target_arch = "x86_64")]
+// mod simple_avx;
 
 #[cfg(target_arch = "aarch64")]
 mod simple_neon;