Remove mac addr to interface name mapping from interface file

We would end up with different mac address for the bond members
which would result in the members dropping the packet

70-persistent-net-rules will make sure the consistent interface naming
hence removing the same from interfaces file

Change-Id: I27db61c910137f0cf2c30aca3bb74e7a5b76f11c
Closes-Bug: #1403592
Merge "Remove mac addr to interface name mapping from interface file" into R2.0