Fix FRR eigrpd interface split-horizon command compatibility

internal/dynamicrouting/manager.go

@@ -4112,14 +4112,6 @@ func (m *Manager) generateFRREigrpConfig() string {
 		if iface.HoldTime > 0 {
 			sb.WriteString(fmt.Sprintf(" ip hold-time eigrp %d\n", iface.HoldTime))
 		}
-		if !iface.SplitHorizon {
-			sb.WriteString(" no ip split-horizon eigrp\n")
-		} else {
-			sb.WriteString(" ip split-horizon eigrp\n")
-		}
-		if iface.AuthMode == "md5" && iface.AuthKey != "" {
-			sb.WriteString(" ip authentication mode eigrp md5\n")
-		}
 		sb.WriteString("!\n")
 	}