hlte: remove network_mode.xml overlay

Change-Id: I2807eaa6865f07c80824990500441c708e523cec
Merge "hlte: remove network_mode.xml overlay" into cm-11.0
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_device_samsung_hlte into cm-11.0
Merge remote-tracking branch 'temasek/cm-11.0' into temp