Optofidelity refactoring: Move prepare step into navigator

The navigator is already doing the job. We won't need specialized
SubjectPreparerers for different devices.

BUG=None
TEST=None

Change-Id: Id2f2295a48a962a30fc0e1c2f8d1b971974443bd
Reviewed-on: https://chromium-review.googlesource.com/336494
Commit-Ready: Dennis Kempin <denniskempin@chromium.org>
Tested-by: Dennis Kempin <denniskempin@chromium.org>
Reviewed-by: Dennis Kempin <denniskempin@chromium.org>
5 files changed
tree: b5a919366c73717680ce8872ae3b60731e1605af
  1. optofidelity/
  2. quickstep/
  3. touchbotI/
  4. touchbotII/
  5. .gitignore
  6. OWNERS
  7. setup.py