Remove redundant notice property. am: 4d89fcdb48

Original change: https://android-review.googlesource.com/c/platform/prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/+/2154553

Change-Id: Ia9e44c429d6dadfdc1ae4b6c80d2d2063a52af4e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>