Remove Network Mode entries [1/2]

* All network mode-related settings are currently broken
* Will be made useless/redundant by Smart Radio/Battery Saver
* Removed Network Mode tile
* Removed LTE tile
* Removed Network Mode entry from profiles

Change-Id: Id6bc249f8e47d441df1c4b9f0210afe77fbbc78f
Merge "Remove Network Mode entries [1/2]" into du44