Don't delete device specific prop folders from system

It is plenty big and this breaks extract-files

Change-Id: Idb12466e12d83356b1818274c1d6dd0a24b2c1d7
releasetools: Remove NFC on all mb886

Change-Id: I13d2c4af9d62853190728de08e209b2cc58f81c9
Remove old unneeded props that break GSM compatibility on vzw devices

 * Remove ro.cdma.subscribe_on_ruim_ready
 * Remove telephony.rilV7NeedCDMALTEPhone

Change-Id: Ic4055324151b846906c619317b0aeb8b1aafe6e8