Revert "libsensors: fix 'empty scalar initializer' errors"

This reverts commit 8c0840b19ea69a65f5f6c6e524a52a04b1678d3d.
tenderloin: more 4.4 fixups

- Really fix libsensor
- Set USE_SET_METADATA
- Update sdcard mounting
- Update wpa_supplicant configuration
- Added search_bar overlay for Launcher3

Change-Id: I01424d0b8233ff59e77ebae3b467a7426412bbbe