Couple blocks and blobs in gossip (#3670)

* Revert "Add more gossip verification conditions"

This reverts commit 1430b561c3.

* Revert "Add todos"

This reverts commit 91efb9d4c7.

* Revert "Reprocess blob sidecar messages"

This reverts commit 21bf3d37cd.

* Add the coupled topic

* Decode SignedBeaconBlockAndBlobsSidecar correctly

* Process Block and Blobs in beacon processor

* Remove extra blob publishing logic from vc

* Remove blob signing in vc

* Ugly hack to compile

beacon_node/store/src/lib.rs

@@ -41,7 +41,6 @@ pub use metrics::scrape_for_metrics;
 use parking_lot::MutexGuard;
 use std::sync::Arc;
 use strum::{EnumString, IntoStaticStr};
-use types::signed_blobs_sidecar::SignedBlobsSidecar;
 pub use types::*;
 
 pub type ColumnIter<'a> = Box<dyn Iterator<Item = Result<(Hash256, Vec<u8>), Error>> + 'a>;
@@ -156,7 +155,7 @@ pub trait ItemStore<E: EthSpec>: KeyValueStore<E> + Sync + Send + Sized + 'stati
 pub enum StoreOp<'a, E: EthSpec> {
     PutBlock(Hash256, Arc<SignedBeaconBlock<E>>),
     PutState(Hash256, &'a BeaconState<E>),
-    PutBlobs(Hash256, Arc<SignedBlobsSidecar<E>>),
+    PutBlobs(Hash256, Arc<BlobsSidecar<E>>),
     PutStateSummary(Hash256, HotStateSummary),
     PutStateTemporaryFlag(Hash256),
     DeleteStateTemporaryFlag(Hash256),