Remove Car audio class from auto pairing.

Majority of the cars don't auto pair unlike headsets, as they have a display.
Instead of maintaining a blacklist of such cars, disable
auto pairing with 0000. This is legacy anyway as newer cars
come with 2.1 pairing.

Change-Id: I644e2da4d11cf2d250d846853523d7975ca000fc
1 file changed