[SSSD] [sssd PR#930][comment] [WiP] SBUS: remove dbus fd from tevent loop when watch is removed

[pbrezina]

  URL: https://github.com/SSSD/sssd/pull/930
Title: #930: [WiP] SBUS: remove dbus fd from tevent loop when watch is removed

pbrezina commented:
"""
>  Do you remember what was the case when valgrind complained? (i.e. how
> to reproduce)
>  
No... but I think it was visible during shutdown or something like that. Try to revert the
patch (or whole commit history) and run it under valgrind. 

>  Do you know if order of `talloc_free(watch_fd->fdevent)` and
> `talloc_free(watch_fd)` was important to fix complain?
>  I mean, would calling `talloc_free(watch_fd->fdevent)` from `watch_destructor()` or
> after `talloc_free(watch_fd)` make valgrding happy?
>  
I do not remember if I tried to put it in the destructor.

"""

See the full comment at https://github.com/SSSD/sssd/pull/930#issuecomment-550984174