[LTP] [PATCH] controllers/cpuacct: Fix deleting directories errors

[Petr Vorel]

Hi Dai, Xu,

...
> Sorry for introducing a regression and for correction.
> I'll revert on your behalf commit d6cc08592 ("controllers/cpuacct: Simplify
> deleting directories"), with your explanation.

FYI Merged!

Kind regards,
Petr