Remove libnativehelper methods AFileDescriptor_{get,set}FD

These are replaced by AFileDescriptor_{get,set}Fd.

Bug: 185256332
Test: TH

(cherry picked from commit 7d753f819b1de0e4ba3d7d059b08a28f65101b6e)
Merged-In: Ib327fcfbc442e5c0e9d3aea8ef60fc670ac38b26
Change-Id: I60c7dbc2c24b073b7139b0948aedb28cf2a6d551
2 files changed