temp fix: disable same username check

hnqz-upms/hnqz-upms-biz/src/main/java/com/qunzhixinxi/hnqz/admin/controller/user/SysUserController.java

@@ -716,12 +716,13 @@ public class SysUserController {
 
         // 校验用户名
         String username = resource.getUsername().trim();
+        /*
         boolean availUsername = userService.count(Wrappers.<SysUser>lambdaQuery()
                 .eq(SysUser::getDelFlag, CommonConstants.STATUS_NORMAL)
                 .eq(SysUser::getUsername, username)) == 0;
         if (!availUsername) {
             return R.failed("用户名已存在");
-        }
+        } */
 
 
         // 校验身份证上的年龄