Remove simd feature

Cargo.toml

@@ -11,9 +11,6 @@ overflow-checks = false
 [profile.release]
 opt-level = 3
 
-[features]
-simd = []
-
 [dependencies]
 rayon = "1.7.0"
 hashbrown = "0.14.0"

README.md

@@ -6,8 +6,6 @@ Brute-force search tool for short Python expressions (for code golf).
 
 Edit the search parameters at the top of `src/params.rs`, then run `cargo run --release`.
 
-If your input/goal vectors have length ≤8, you can try `cargo +nightly run --release --features simd`.
-
 In `main.rs` you can edit the file used as the params module (default `#[path = "params.rs"]`). This way you can manage multiple configurations (e.g. make a `params-fizzbuzz.rs`).
 
 ## Example

src/main.rs

@@ -1,15 +1,10 @@
-#![cfg_attr(feature = "simd", feature(portable_simd))]
-
 pub mod expr;
 pub mod operator;
+pub mod vec;
 
 #[path = "params.rs"]
 pub mod params;
 
-#[cfg_attr(all(feature = "simd", feature = "portable_simd"), path = "vec_simd.rs")]
-#[cfg_attr(not(feature = "simd"), path = "vec.rs")]
-pub mod vec;
-
 use expr::{Expr, NonNullExpr, VarCount};
 use operator::*;
 use params::*;