net: wireless: bcmdhd: Remove CMD_COUNTRY private command

net: wireless: bcmdhd: Remove CMD_COUNTRY private command

Since we are using global country code Q2 and reg revision 87
in firmware. Which will support for ALL countries remove the
CMD_COUNTRY private command.

Bug 1515052

Change-Id: Ibd49f215c6f1d46525ac88fd83035e58bc898cd4
Signed-off-by: Mohan T <mohant@nvidia.com>
Reviewed-on: http://git-master/r/417398
(cherry picked from commit 38e7bb5282ed8576d3e37aa62bb8802aa6f80b36)
Reviewed-on: http://git-master/r/420109
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>