UNIXProcess_md.c: do not use close_range

This change drops the optimization of using close_range to close file
descriptors in the forking process.

Seccomp policy on Android S blocks the use close_range.

Fix: 231924178
Test: presubmits
Change-Id: I6f4422a01fbae735a36a9d911ea58e611f16fea1
Merged-In: I6f4422a01fbae735a36a9d911ea58e611f16fea1
(cherry picked from commit 54d97ca66174a544de9a544fa6cd483c18af4da9)
1 file changed