Remove hidl.memory from vintf manifest for V+ am: 7734a93f3d

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/2828380

Change-Id: I4231ec53def14927e9f20c441e06cc71b0b6d7ee
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>