Revert "User defined wifi/usb tether network. [1/2]"

This reverts commit 403f8242e6a27cd5a69b2419358a0d6ef8dee2cb.

Change-Id: I73fcb61e052862c0538ddb864640357dc1752f9d
Merge "Revert "User defined wifi/usb tether network. [1/2]"" into du44