Fix race condition during LE device remove bond.

BTA_GATTC_CancelOpen doesn't execute immediately, but rather schedule
operation for execution later. During bond removal, we must make sure
that device is removed from white list before it's removed from
resolving list. Calling GATT_CancelConnect directly fixes this issue.

Additionally, after checking the logic, unconditional remove should
remove all connection attempts, including direct connections, rather
than just background connections.

Bug: 122918938
Bug: 112827989
Test: re-bond hearing aids
Change-Id: I9d861b7d83ea4da9c2a278eea2e34f2b7aca2417