remove guangzhu from OWNERS am: a867aa201e

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

Change-Id: Ie24d7284da4a4213bed7693aae632ab5f4ee665f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>