Merge "stack.cc: remove double deletion of stack_handler_" into main am: ab39bae1

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3533050



Change-Id: Ib39da8c6f4326e8a886d17f7f62ae68e1e4aa9c7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>