Make Aggregating In Parallel The Permanent Default (#13407)

* make it the permanent default

* gaz

config/features/config.go

@@ -68,8 +68,6 @@ type Flags struct {
 
 	PrepareAllPayloads bool // PrepareAllPayloads informs the engine to prepare a block on every slot.
 
-	AggregateParallel bool // AggregateParallel aggregates attestations in parallel.
-
 	// KeystoreImportDebounceInterval specifies the time duration the validator waits to reload new keys if they have
 	// changed on disk. This feature is for advanced use cases only.
 	KeystoreImportDebounceInterval time.Duration
@@ -231,11 +229,6 @@ func ConfigureBeaconChain(ctx *cli.Context) error {
 		logEnabled(prepareAllPayloads)
 		cfg.PrepareAllPayloads = true
 	}
-	cfg.AggregateParallel = true
-	if ctx.IsSet(disableAggregateParallel.Name) {
-		logEnabled(disableAggregateParallel)
-		cfg.AggregateParallel = false
-	}
 	if ctx.IsSet(disableResourceManager.Name) {
 		logEnabled(disableResourceManager)
 		cfg.DisableResourceManager = true