Remove Backup Webhook In the Beacon Node (#11235)

* remove it

* gaz

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>

cmd/beacon-chain/main.go

@@ -74,7 +74,6 @@ var appFlags = []cli.Flag{
 	flags.MevRelayEndpoint,
 	flags.MaxBuilderEpochMissedSlots,
 	flags.MaxBuilderConsecutiveMissedSlots,
-	cmd.EnableBackupWebhookFlag,
 	cmd.BackupWebhookOutputDir,
 	cmd.MinimalConfigFlag,
 	cmd.E2EConfigFlag,

cmd/beacon-chain/usage.go

@@ -62,7 +62,6 @@ var appHelpFlagGroups = []flagGroup{
 			cmd.TraceSampleFractionFlag,
 			cmd.MonitoringHostFlag,
 			cmd.BackupWebhookOutputDir,
-			cmd.EnableBackupWebhookFlag,
 			flags.MonitoringPortFlag,
 			cmd.DisableMonitoringFlag,
 			cmd.MaxGoroutines,