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/network/src/router/mod.rs

@@ -236,12 +236,12 @@ impl<T: BeaconChainTypes> Router<T> {
                     block,
                 );
             }
-            PubsubMessage::BlobsSidecars(blobs) => {
-                self.processor.on_blobs_gossip(
+            PubsubMessage::BeaconBlockAndBlobsSidecars(block_and_blobs) => {
+                self.processor.on_block_and_blobs_sidecar_gossip(
                     id,
                     peer_id,
                     self.network_globals.client(&peer_id),
-                    blobs,
+                    block_and_blobs,
                 );
             }
             PubsubMessage::VoluntaryExit(exit) => {