Replacing error in case of missing flags in agents with warning

agents/asterisk_event.go

@@ -296,7 +296,7 @@ func (smaEv *SMAsteriskEvent) V1AuthorizeArgs() (args *sessions.V1AuthorizeArgs)
 		CGREvent: cgrEv,
 	}
 	if smaEv.Subsystems() == utils.EmptyString {
-		utils.Logger.Err(fmt.Sprintf("<%s> cgr_flags variable is not set",
+		utils.Logger.Warning(fmt.Sprintf("<%s> cgr_flags variable is not set, using defaults",
 			utils.AsteriskAgent))
 		args.GetMaxUsage = true
 		return

agents/fsevent.go

@@ -30,8 +30,6 @@ import (
 	"github.com/cgrates/fsock"
 )
 
-// ToDo: Introduce support for RSRFields
-
 const (
 	varPrefix = "variable_"
 	// Freswitch event proprities names