Remove dependency on car-androidx-room

Use prebuilt directly since it's available now.

Bug: 138749761
Test: it builds
Change-Id: I098583ad5acf44cf7e7e4e96d3492f81e3f59c07
1 file changed
tree: b06b68b4c59fd0c919cb4fb3b0ae88a5e12112e2
  1. res/
  2. src/
  3. Android.bp
  4. AndroidManifest.xml
  5. OWNERS
  6. PREUPLOAD.cfg