remove guangzhu from OWNERS am: a867aa201e am: 75d0e8aa4b

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2170725

Change-Id: Ibed3d4fa22c968dae0d6f0164271a5d0b80dd9e2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>