chore(op-proposer): double driver starting logs (#9915)

op-proposer/proposer/service.go

@@ -259,8 +259,7 @@ func (ps *ProposerService) initRPCServer(cfg *CLIConfig) error {
 // Start runs once upon start of the proposer lifecycle,
 // and starts L2Output-submission work if the proposer is configured to start submit data on startup.
 func (ps *ProposerService) Start(_ context.Context) error {
-	ps.driver.Log.Info("Starting Proposer")
-
+	ps.Log.Info("Starting Proposer")
 	return ps.driver.StartL2OutputSubmitting()
 }