fix:品牌管理logo非必填

cooleshow-mall/mall-admin/src/main/java/com/yonge/cooleshow/admin/dto/PmsBrandParam.java

@@ -27,7 +27,6 @@ public class PmsBrandParam {
     @FlagValidator(value = {"0","1"}, message = "显示状态不正确")
     @ApiModelProperty(value = "是否进行显示")
     private Integer showStatus;
-    @NotEmpty
     @ApiModelProperty(value = "品牌logo",required = true)
     private String logo;
     @ApiModelProperty(value = "品牌大图")