apns: Remove defunct Albanian carrier

Why:
- The carrier "Plus" has been disbanded/stopped serving mobile services in 2018.
- Didn't commit this to AOSP since they didn't seem to have Plus as a carrier, plus their list is exteremely outdated.

Change-Id: I1f3e992380fd90d8c85dcc8ead1d98ef65ea900f
(cherry picked from commit ca5ae008)