[LTP] [PATCH v2] cgroup_regression_test.sh: Remove obselte test_5

[Petr Vorel]

Hi Xu,

> test_5 is a very old regresstion test and kernel code has been
> rewritten completely since 2.6. No user will use such old kernel
> code to test. So I think we can remove it.

> Also rename test10 as test5, modify TST_CNT.

Merged, with additional note, why it's safe to remove it:

    [ pvorel: test_5 is testing 839ec5452ebf ("cgroup: fix root_count when
    mount fails due to busy subsystem") from v2.6.29-rc4 which fixes
    e5f6a8609bab ("cgroups: make root_list contains active hierarchies
    only") from v2.6.24-rc1. While there are still people testing LTP on
    2.6.x, nobody should be using -rc version now. ]

Kind regards,
Petr