fix campaign rules

internal/validator/campaign_validator.go

@@ -56,17 +56,6 @@ func (v *CampaignValidatorImpl) ValidateCreateCampaignRequest(req *contract.Crea
 		return errors.New("position cannot be negative"), constants.ValidationErrorCode
 	}
 
-	// Validate rules
-	if len(req.Rules) == 0 {
-		return errors.New("at least one rule is required"), constants.ValidationErrorCode
-	}
-
-	for i, rule := range req.Rules {
-		if err := v.validateCampaignRule(&rule, i+1); err != nil {
-			return err, constants.ValidationErrorCode
-		}
-	}
-
 	return nil, ""
 }
 
@@ -103,17 +92,6 @@ func (v *CampaignValidatorImpl) ValidateUpdateCampaignRequest(req *contract.Upda
 		return errors.New("position cannot be negative"), constants.ValidationErrorCode
 	}
 
-	// Validate rules
-	if len(req.Rules) == 0 {
-		return errors.New("at least one rule is required"), constants.ValidationErrorCode
-	}
-
-	for i, rule := range req.Rules {
-		if err := v.validateCampaignRule(&rule, i+1); err != nil {
-			return err, constants.ValidationErrorCode
-		}
-	}
-
 	return nil, ""
 }