[QNS] Remove AlternativeEventListener & Provider

AlternativeEventListener and Provider provides interfaces to receive
data from other modules. Currently, these classes are not used
because there is no more data to get from external.

Bug: 274863260
Test: atest QualifiedNetworksServiceTests
Change-Id: I42fa96dbfa6d9c7d9a9544828ae5b913ec64905d
9 files changed
tree: 8f2ca2ac232f94e9ecc5368d46c4cb93867f615c
  1. apex/
  2. libs/
  3. services/
  4. .gitignore
  5. OWNERS
  6. PREUPLOAD.cfg
  7. TEST_MAPPING