Remove unused log4j jars am: c96c1c8ae2 am: 864702ebd6 am: 7032b0af34 am: 8023634a50

Original change: https://googleplex-android-review.googlesource.com/c/platform/prebuilts/tools/+/16456597

Change-Id: I3d56f6071a11b5e3b88ff4fb451a01f319d93e12