Hide vpn icon when delete all connections

tower: https://tower.im/projects/8f19f0bf0e754f0b82ef2c24bc230973/todos/876c9caff51a42ef93d5d38ca26e60d8/

Change-Id: I99424ac94ce8c6099d0c0fd1795efea9eaf694db
Merge "Hide vpn icon when delete all connections" into release/2014.2