[v2] erofs: don't warn dedupe and fragments features anymore

[Gao Xiang]

The subject should be:
[PATCH v2] erofs: don't warn dedupe and fragments features anymore

but it's not really needed to resend.

On 2023/8/21 12:17, sunshijie wrote:
> The `dedupe` and `fragments` features have been merged for a year.  They are
> mostly stable now.
> 
> Signed-off-by: sunshijie <sunshijie at xiaomi.com>

Reviewed-by: Gao Xiang <hsiangkao at linux.alibaba.com>

Thanks,
Gao Xiang