Jiaming Yuan 22b0a55a04
Remove hist builder class. (#9400)
* Remove hist build class.

* Cleanup this stateless class.

* Add comment to thread block.
2023-07-22 10:43:12 +08:00
..
2023-07-07 11:21:35 +08:00
2023-07-22 10:43:12 +08:00
2022-09-21 18:06:50 +08:00
2023-03-01 00:39:06 +08:00
2020-08-12 01:26:02 -07:00