[automerger skipped] dmabufinfo_test: Remove attachment stats tests am: f36d4cefb3 am: d6584ae333 -s ours am: 91aafa9d14 -s ours am: 880b85eeca -s ours

am skip reason: Merged-In I3b46705fc0627343d16bc2033204f33cc2291259 with SHA-1 99fdf80131 is already in history

Original change: https://android-review.googlesource.com/c/platform/system/memory/libmeminfo/+/1761691

Change-Id: Ie54ce697a6ff66ed79627827eabb046fdc4b1018