Remove unused packed-simd dependency

Author: sebastiencs

Cargo.lock

@@ -59,7 +59,6 @@ serde = { version = "1.0", features = ["rc"] }
 serde_json = { version = "1.0", features = ["float_roundtrip"] }
 bincode = "1.3.3"
 
-packed_simd = { version = "0.3.9" }
 backtrace = "0.3"
 derive_more = "0.99.17"
 rand_pcg = "0.3"

ledger/Cargo.lock

@@ -11,7 +11,6 @@ use std::str::FromStr;
 mod fp;
 
 mod fq_params;
-mod simd;
 
 pub use fq_params::*;