Use the default r_submix policy

Since we use the default r_submix implementtaion
let's use its default policy.

Bug: 157158109
Test: presubmit
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: Ib63da43ccbc056d00fcdf276b03d9f3ede3cab5b
Merged-In: Ib63da43ccbc056d00fcdf276b03d9f3ede3cab5b
2 files changed