Clean capella (#4019)

## Issue Addressed

Cleans up all the remnants of 4844 in capella. This makes sure when 4844 is reviewed there is nothing we are missing because it got included here 

## Proposed Changes

drop a bomb on every 4844 thing 

## Additional Info

Merge process I did (locally) is as follows:
- squash merge to produce one commit
- in new branch off unstable with the squashed commit create a `git revert HEAD` commit
- merge that new branch onto 4844 with `--strategy ours`
- compare local 4844 to remote 4844 and make sure the diff is empty
- enjoy

Co-authored-by: Paul Hauner <paul@paulhauner.com>

beacon_node/lighthouse_network/src/rpc/mod.rs

@@ -24,7 +24,6 @@ pub(crate) use handler::HandlerErr;
 pub(crate) use methods::{MetaData, MetaDataV1, MetaDataV2, Ping, RPCCodedResponse, RPCResponse};
 pub(crate) use protocol::{InboundRequest, RPCProtocol};
 
-use crate::rpc::methods::MAX_REQUEST_BLOBS_SIDECARS;
 pub use handler::SubstreamId;
 pub use methods::{
     BlocksByRangeRequest, BlocksByRootRequest, GoodbyeReason, LightClientBootstrapRequest,
@@ -145,11 +144,6 @@ impl<Id: ReqId, TSpec: EthSpec> RPC<Id, TSpec> {
                 Duration::from_secs(10),
             )
             .n_every(Protocol::BlocksByRoot, 128, Duration::from_secs(10))
-            .n_every(
-                Protocol::BlobsByRange,
-                MAX_REQUEST_BLOBS_SIDECARS,
-                Duration::from_secs(10),
-            )
             .build()
             .expect("Configuration parameters are valid");
 
@@ -345,7 +339,6 @@ where
                     match end {
                         ResponseTermination::BlocksByRange => Protocol::BlocksByRange,
                         ResponseTermination::BlocksByRoot => Protocol::BlocksByRoot,
-                        ResponseTermination::BlobsByRange => Protocol::BlobsByRange,
                     },
                 ),
             },