Rename canonical_hash to `hash

eth2/utils/ssz/src/tree_hash.rs

@@ -1,4 +1,4 @@
-use hashing::canonical_hash;
+use hashing::hash;
 
 const SSZ_CHUNK_SIZE: usize = 128;
 const HASHSIZE: usize = 32;
@@ -64,10 +64,6 @@ fn list_to_blob(list: &mut Vec<Vec<u8>>) -> (usize, Vec<u8>) {
     (chunk_size, data)
 }
 
-pub fn hash(data: &[u8]) -> Vec<u8> {
-    canonical_hash(data)
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;