enable nbn electra block processing (#6288)

beacon_chain/nimbus_beacon_node.nim

@@ -404,12 +404,7 @@ proc initFullNode(
                              maybeFinalized: bool):
         Future[Result[void, VerifierError]] {.async: (raises: [CancelledError]).} =
       withBlck(signedBlock):
-        when consensusFork >= ConsensusFork.Electra:
-          debugRaiseAssert "foo"
-          await blockProcessor[].addBlock(MsgSource.gossip, signedBlock,
-                                    Opt.none(BlobSidecars),
-                                    maybeFinalized = maybeFinalized)
-        elif consensusFork >= ConsensusFork.Deneb:
+        when consensusFork >= ConsensusFork.Deneb:
           if not blobQuarantine[].hasBlobs(forkyBlck):
             # We don't have all the blobs for this block, so we have
             # to put it in blobless quarantine.