Rename METADATA.android file to just METADATA am: f35b3ed30c

Original change: https://android-review.googlesource.com/c/platform/external/libchrome-gestures/+/2855735

Change-Id: I0c424d0e786a2ed360d2467a89b82eb6dfa50070
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>