am 5f53a182: Revert "Add qsort_r() implementation to the C library."

Merge commit '5f53a18204ec991f5a77872806eeaa185936aa8c' into eclair-plus-aosp

* commit '5f53a18204ec991f5a77872806eeaa185936aa8c':
  Revert "Add qsort_r() implementation to the C library."