mwifiex: use country ie of requested AP while associating

AP's country ie is parsed and 11d information is updated in firmware
while associating. Previous mwifiex_send_domain_info_cmd_fw() call in
association path is not necessary now. Hence it is removed in this
patch.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>