Merge branch 'master' into lmd-ghost

eth2/utils/hashing/Cargo.toml

@@ -6,4 +6,3 @@ edition = "2018"
 
 [dependencies]
 tiny-keccak = "1.4.2"
-ssz = { path = "../ssz" }

eth2/utils/hashing/src/lib.rs

@@ -1,4 +1,3 @@
-use ssz::{ssz_encode, Encodable as SszEncodable};
 use tiny_keccak::Keccak;
 
 pub fn canonical_hash(input: &[u8]) -> Vec<u8> {
@@ -9,10 +8,6 @@ pub fn canonical_hash(input: &[u8]) -> Vec<u8> {
     result
 }
 
-pub fn hash_tree_root<T: SszEncodable>(input: &T) -> Vec<u8> {
-    canonical_hash(&ssz_encode(input))
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;