Merge "Remove NN host specific build defines" am: fe9368b729 am: 13a6d16614 am: 6d588b7cd9

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1997731

Change-Id: I2bfc9dbc8c7fbc0940eed48968dc5df89314b08c