Remove detect-cpufeatures feature

Cargo.toml

@@ -16,7 +16,7 @@ ring = "0.17"
 sha2 = "0.10"
 
 [target.'cfg(target_arch = "x86_64")'.dependencies]
-cpufeatures = { version = "0.2", optional = true }
+cpufeatures = "0.2"
 
 [dev-dependencies]
 rustc-hex = "2"
@@ -25,6 +25,5 @@ rustc-hex = "2"
 wasm-bindgen-test = "0.3.33"
 
 [features]
-default = ["zero_hash_cache", "detect-cpufeatures"]
+default = ["zero_hash_cache"]
 zero_hash_cache = ["lazy_static"]
-detect-cpufeatures = ["cpufeatures"]

src/lib.rs

@@ -127,15 +127,15 @@ pub enum DynamicImpl {
 // Runtime latch for detecting the availability of SHA extensions on x86_64.
 //
 // Inspired by the runtime switch within the `sha2` crate itself.
-#[cfg(all(feature = "detect-cpufeatures", target_arch = "x86_64"))]
+#[cfg(target_arch = "x86_64")]
 cpufeatures::new!(x86_sha_extensions, "sha", "sse2", "ssse3", "sse4.1");
 
 #[inline(always)]
 pub fn have_sha_extensions() -> bool {
-    #[cfg(all(feature = "detect-cpufeatures", target_arch = "x86_64"))]
+    #[cfg(target_arch = "x86_64")]
     return x86_sha_extensions::get();
 
-    #[cfg(not(all(feature = "detect-cpufeatures", target_arch = "x86_64")))]
+    #[cfg(not(target_arch = "x86_64"))]
     return false;
 }