Make BeaconChain::kzg field mandatory (#6267)

* make kzg field required

* update todo

* always load trusted setup WIP

* fmt

* use new rust_eth_kzg version

* merge conlficts

* add kzg fn with trusted setup disabled

* as_slice

* add kzg with no precomp

* ignore udep for kzg

* refactor kzg init

* fix peerdas kzg schedule

* fix

* udeps

* uuuudeps

* merge conflict resolved

* merge conflict

* merge conflicts

* resolve TODO

* update

* move kzg to a test util fn

* remove trusted setup default impl

* lint fmt

* fix failing test

* lint

* fix test

* Merge branch 'unstable' into beacon-chain-kzg-field-required

beacon_node/beacon_chain/src/data_column_verification.rs

@@ -52,12 +52,6 @@ pub enum GossipDataColumnError {
         data_column_slot: Slot,
         parent_slot: Slot,
     },
-    /// `Kzg` struct hasn't been initialized. This is an internal error.
-    ///
-    /// ## Peer scoring
-    ///
-    /// The peer isn't faulty, This is an internal error.
-    KzgNotInitialized,
     /// The kzg verification failed.
     ///
     /// ## Peer scoring
@@ -382,12 +376,8 @@ pub fn validate_data_column_sidecar_for_gossip<T: BeaconChainTypes>(
     let parent_block = verify_parent_block_and_finalized_descendant(data_column.clone(), chain)?;
     verify_slot_higher_than_parent(&parent_block, column_slot)?;
     verify_proposer_and_signature(&data_column, &parent_block, chain)?;
-
-    let kzg = chain
-        .kzg
-        .clone()
-        .ok_or(GossipDataColumnError::KzgNotInitialized)?;
-    let kzg_verified_data_column = verify_kzg_for_data_column(data_column.clone(), &kzg)
+    let kzg = &chain.kzg;
+    let kzg_verified_data_column = verify_kzg_for_data_column(data_column.clone(), kzg)
         .map_err(GossipDataColumnError::InvalidKzgProof)?;
 
     chain