use commits instead of timestamp for android versioncode (#19835)
use commits instead of timestamp for android versioncode (#19835)

* use commits instead of timestamp

* Remove dead code, don't use split apks

keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client