[automerger skipped] Delete an uninitialized object in AACExtractor am:...

[automerger skipped] Delete an uninitialized object in AACExtractor am: 19e92b5b am: 969951fe -s ours am: 8127f75d -s ours am: db6536db -s ours am: 480b74d2 -s ours

am skip reason: Change-Id Ie04989f20170391961c8a6d12e1882262be18d7f with SHA-1 19e92b5b is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/12061463

Change-Id: Iaf484445a1341dfd77a19d15003427a784705372