Deneb pr updates 2 (#4851)

* use workspace deps in kzg crate

* delete unused blobs dp path field

* full match on fork name in engine api get payload v3

* only accept v3 payloads on get payload v3 endpoint in mock el

* remove FIXMEs related to merge transition tests

* move static tx to test utils

* default max_per_epoch_activation_churn_limit to mainnet value

* remove unnecessary async

* remove comment

* use task executor in `blob_sidecars` endpoint

beacon_node/execution_layer/src/lib.rs

@@ -48,7 +48,7 @@ use types::{
     AbstractExecPayload, BeaconStateError, BlindedPayload, BlockType, ChainSpec, Epoch,
     ExecPayload, ExecutionPayloadCapella, ExecutionPayloadDeneb, ExecutionPayloadMerge,
 };
-use types::{ProposerPreparationData, PublicKeyBytes, Signature, Slot, Transaction};
+use types::{ProposerPreparationData, PublicKeyBytes, Signature, Slot};
 
 mod block_hash;
 mod engine_api;
@@ -2163,31 +2163,6 @@ fn timestamp_now() -> u64 {
         .as_secs()
 }
 
-fn static_valid_tx<T: EthSpec>() -> Result<Transaction<T::MaxBytesPerTransaction>, String> {
-    // This is a real transaction hex encoded, but we don't care about the contents of the transaction.
-    let transaction: EthersTransaction = serde_json::from_str(
-        r#"{
-            "blockHash":"0x1d59ff54b1eb26b013ce3cb5fc9dab3705b415a67127a003c3e61eb445bb8df2",
-            "blockNumber":"0x5daf3b",
-            "from":"0xa7d9ddbe1f17865597fbd27ec712455208b6b76d",
-            "gas":"0xc350",
-            "gasPrice":"0x4a817c800",
-            "hash":"0x88df016429689c079f3b2f6ad39fa052532c56795b733da78a91ebe6a713944b",
-            "input":"0x68656c6c6f21",
-            "nonce":"0x15",
-            "to":"0xf02c1c8e6114b1dbe8937a39260b5b0a374432bb",
-            "transactionIndex":"0x41",
-            "value":"0xf3dbb76162000",
-            "v":"0x25",
-            "r":"0x1b5e176d927f8e9ab405058b2d2457392da3e20f328b16ddabcebc33eaac5fea",
-            "s":"0x4ba69724e8f69de52f0125ad8b3c5c2cef33019bac3249e2c0a2192766d1721c"
-         }"#,
-    )
-    .unwrap();
-    VariableList::new(transaction.rlp().to_vec())
-        .map_err(|e| format!("Failed to convert transaction to SSZ: {:?}", e))
-}
-
 fn noop<T: EthSpec>(
     _: &ExecutionLayer<T>,
     _: PayloadContentsRefTuple<T>,