logd: don't use a thread for deleting log chunks

This was a premature optimization.  Profiling shows that decompressing
and deleting these logs is rather fast and overall CPU utilization is
lower without the added thread.

Test: profile logd with/without this thread
Change-Id: I31bd52077b495d562dd5797585191dc200ad3859
2 files changed
tree: ca937993fab8357975b3674cbbc8bd047f4aa8dd
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/