Reduce max_concurrent_scans and max_concurrent_scans, remove unused instances

Hearing Aid profile is using one client, we can start one client less.

Bug: 79114848
(cherry picked from commit b52628d4362adcd05ce452716d15003a882307a8)
7 files changed
tree: feb4b45ae7abbcd2f9f6992978140a275446ecde
  1. acts/
  2. tools/
  3. wts-acts/
  4. Android.mk
  5. PREUPLOAD.cfg