[RFCLAT#16] remove drop_root_and_caps
gid and uid of clatd binary has been set by apex
canned_fs_config. don't need drop_root_and_caps()
anymore.
Bug: 212345928
Test: manual test
1. Connect to ipv6-only wifi.
2. Make IPv4 traffic.
$ ping 8.8.8.8
Check uid and uid is AID_CLAT(1029) in process status:
$ adb shell ps | grep clat
clat 9743 740 10826108 2264 0 0 S clatd-wlan0
$ adb shell cat /proc/9743/status | egrep -i '^(Uid|Gid|Groups):|^Cap'
Uid: 0 1029 1029 1029
Gid: 0 1029 1029 1029
Groups: 3005
CapInh: 00000000000074ef
CapPrm: 00000000000074ef
CapEff: 0000000000000000
CapBnd: 00000000000074ef
CapAmb: 0000000000000000
Change-Id: I8f7a9c50368d5c789621ea39b39d9242adfb0fcc
4 files changed
