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/block_verification.rs

@@ -789,19 +789,11 @@ fn build_gossip_verified_data_columns<T: BeaconChainTypes>(
         // Only attempt to build data columns if blobs is non empty to avoid skewing the metrics.
         .filter(|b| !b.is_empty())
         .map(|blobs| {
-            // NOTE: we expect KZG to be initialized if the blobs are present
-            let kzg = chain
-                .kzg
-                .as_ref()
-                .ok_or(BlockContentsError::DataColumnError(
-                    GossipDataColumnError::KzgNotInitialized,
-                ))?;
-
             let mut timer = metrics::start_timer_vec(
                 &metrics::DATA_COLUMN_SIDECAR_COMPUTATION,
                 &[&blobs.len().to_string()],
             );
-            let sidecars = blobs_to_data_column_sidecars(&blobs, block, kzg, &chain.spec)
+            let sidecars = blobs_to_data_column_sidecars(&blobs, block, &chain.kzg, &chain.spec)
                 .discard_timer_on_break(&mut timer)?;
             drop(timer);
             let mut gossip_verified_data_columns = vec![];