[automerger skipped] Undefine NAN after including it in Looper.h am: 2dd55590fd -s ours am: e5f44158af -s ours

am skip reason: Merged-In I63bba8ea809a12571ddc88cd1d20f2adeedf0b30 with SHA-1 84a19f64f5 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15685265

Change-Id: Icd01d35529de608c4b183c7727f762e18d6ba0e5