Remove consensus/types re-exports (#8540)

There are certain crates which we re-export within `types` which creates a fragmented DevEx, where there are various ways to import the same crates.

```rust
// consensus/types/src/lib.rs
pub use bls::{
AggregatePublicKey, AggregateSignature, Error as BlsError, Keypair, PUBLIC_KEY_BYTES_LEN,
PublicKey, PublicKeyBytes, SIGNATURE_BYTES_LEN, SecretKey, Signature, SignatureBytes,
get_withdrawal_credentials,
};
pub use context_deserialize::{ContextDeserialize, context_deserialize};
pub use fixed_bytes::FixedBytesExtended;
pub use milhouse::{self, List, Vector};
pub use ssz_types::{BitList, BitVector, FixedVector, VariableList, typenum, typenum::Unsigned};
pub use superstruct::superstruct;
```

This PR removes these re-exports and makes it explicit that these types are imported from a non-`consensus/types` crate.


Co-Authored-By: Mac L <mjladson@pm.me>

common/account_utils/src/validator_definitions.rs

@@ -4,6 +4,7 @@
 //! attempt) to load into the `crate::intialized_validators::InitializedValidators` struct.
 
 use crate::{default_keystore_password_path, read_password_string, write_file_via_temporary};
+use bls::PublicKey;
 use eth2_keystore::Keystore;
 use regex::Regex;
 use serde::{Deserialize, Serialize};
@@ -12,7 +13,7 @@ use std::fs::{self, File, create_dir_all};
 use std::io;
 use std::path::{Path, PathBuf};
 use tracing::error;
-use types::{Address, PublicKey, graffiti::GraffitiString};
+use types::{Address, graffiti::GraffitiString};
 use validator_dir::VOTING_KEYSTORE_FILE;
 use zeroize::Zeroizing;