Remove default device selection logic that gives top priority to connected hearing aids.

Bug: 239888691
Bug: 229358080
Test: m
Change-Id: Icaad511b02cd327d6fedd2933ce026924036410b
Merged-In: Icaad511b02cd327d6fedd2933ce026924036410b
(cherry picked from commit 07fd48af4d27e162be0e535273bc000886f33146)
1 file changed