[automerger] Remove unused AVIExtractor source am: 5eaa57a5de am: ed0e450f52 am: daaa073463 am: ab9c5f6988 am: e86429da5c am: 4852308d84 am: e27023e7f6
am: cc52f1423b

Change-Id: I4a0d725d66b9bdfb542ebdeaa53ec369b2edf24a