net_test_btif_hh: Remove dynamic allocation in test am: a07de70d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3058963



Change-Id: Ic39e5ed98f6268152cfd39a81b1a40395bf93a05
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>