hikey: Remove obsolete cmdline file am: b74f63ef36 am: 13b5da76ed am: 9df526afc1
am: 7f9c4b5fc2

* commit '7f9c4b5fc290e06475291790004555d406fa7b3f':
  hikey: Remove obsolete cmdline file

Change-Id: I55af454a59050f26e9ab1c281672a6c363d0c8c6