Remove STService dependency on model database

The loaded model can mismatch the model in the database.
Removing this dependency while preserving existing behavior
for STDetector clients. These clients already must load the
model to prevent state mismatch.

Test: Compiles
Bug: 266963008
Change-Id: I0c0ea9081e9507c2237796ac11a7585dec1c148d
4 files changed