core: Remove the Principal method of the Runtime interface.

This is part of the runtimeX migration.

Change-Id: Id7747624f46663ee0b793eed248063aa39f864a5
27 files changed
tree: 2687e9e21c752932f98826774fd3b1046f9a3ae4
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/