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

[pbrezina]

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

pbrezina commented:
"""
Patch from sssd-2.x: f1f9af528f

The interesting thing is that `watch->fde` should be freed with `watch` because it is
its parent (see the code below) and there should not be any need to free it explicitly. I
fixed it in sssd-2.x because valgrind kept complaining about it, but I do not recall any
crash caused by it.

```
    watch->fde = tevent_add_fd(conn->ev,
                               watch, fd, event_flags,
                               sbus_watch_handler, watch);
```

But at least the patch is harmless so we can push it with hope that it will fix the
issue... can you perhaps try to catch it with valgrind?


"""

See the full comment at https://github.com/SSSD/sssd/pull/930#issuecomment-550230440