Revert "network: hide option to clone machine address of wireless card"

This reverts commit 807defda669fff7b0b3ca39dc91032755005bc19.

We could not determine if wireless driver support
changing machine address now, so just revert previous
commit.

tower: https://tower.im/projects/8f19f0bf0e754f0b82ef2c24bc230973/todos/306c4e0daa7e4f738dfe650b16591ba2/
Change-Id: Ic9124450dd10fe3a54a8a2d43cccfe2fb6daf0a2