The existing one, being deleted here, did not work properly: it only
updated the file used by libcore and bionic, it did not update the ICU
data.
Most of the installation logic exists in code in libcore/tzdata that is
independent of the server code so that it can be tested.
Bug: 19941636
Change-Id: Id0985f8c5be2f12858ee8bf52acf52bdb2df8741
At startup, we check with PackageManager whether a system service is
available before attempting to load it. A system service is available
if its associated feature (similar to hardware features) is present.
This does not remove unavailable services from the compiled jar.
Change-Id: I13571805083aa4e65519a74acb52efd17b9fb3d7
