Revert "XNA Data Modeling Changes"

Revert submission 21006571-presubmit-am-448d995d89f14619ae0aac4e236ea4fa

Reason for revert: b/266638682

Reverted changes: /q/submissionid:21006571-presubmit-am-448d995d89f14619ae0aac4e236ea4fa

Test: NA

Change-Id: Ibd7873f04f6feef36a9dcd290e0e57964461a069
13 files changed
tree: 3c19ed7d6eb6604a8bafa439eb68262f4774309d
  1. adservices/
  2. apex/
  3. sdksandbox/
  4. groups
  5. OWNERS
  6. PREUPLOAD.cfg
  7. project.config