hammerhead: Remove dun type for sprint
hammerhead: Remove dun type for sprint

Bug: 18267472
Change-Id: Ie51071aa88515af48729f6c3c24cd94934f29218

maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead