use electra feature in notifier completeness check (#5786)

* use electra feature in notifier completeness check

* update capella and denab readiness chacks to use fork name rather than random fields

beacon_node/client/src/notifier.rs

@@ -434,11 +434,9 @@ async fn capella_readiness_logging<T: BeaconChainTypes>(
         .canonical_head
         .cached_head()
         .snapshot
-        .beacon_block
-        .message()
-        .body()
-        .execution_payload()
-        .map_or(false, |payload| payload.withdrawals_root().is_ok());
+        .beacon_state
+        .fork_name_unchecked()
+        >= ForkName::Capella;
 
     let has_execution_layer = beacon_chain.execution_layer.is_some();
 
@@ -496,11 +494,9 @@ async fn deneb_readiness_logging<T: BeaconChainTypes>(
         .canonical_head
         .cached_head()
         .snapshot
-        .beacon_block
-        .message()
-        .body()
-        .execution_payload()
-        .map_or(false, |payload| payload.blob_gas_used().is_ok());
+        .beacon_state
+        .fork_name_unchecked()
+        >= ForkName::Deneb;
 
     let has_execution_layer = beacon_chain.execution_layer.is_some();
 
@@ -549,17 +545,13 @@ async fn electra_readiness_logging<T: BeaconChainTypes>(
     beacon_chain: &BeaconChain<T>,
     log: &Logger,
 ) {
-    // TODO(electra): Once Electra has features, this code can be swapped back.
-    let electra_completed = false;
-    //let electra_completed = beacon_chain
-    //    .canonical_head
-    //    .cached_head()
-    //    .snapshot
-    //    .beacon_block
-    //    .message()
-    //    .body()
-    //    .execution_payload()
-    //    .map_or(false, |payload| payload.electra_placeholder().is_ok());
+    let electra_completed = beacon_chain
+        .canonical_head
+        .cached_head()
+        .snapshot
+        .beacon_state
+        .fork_name_unchecked()
+        >= ForkName::Electra;
 
     let has_execution_layer = beacon_chain.execution_layer.is_some();