Remove redundant notice property. am: 4d89fcdb48 am: d1591013b9 am: d66b54b0f6

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

Change-Id: Icd5006325bc626b20f324a07505bbaf9cb612744
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>