After 4965, tx_power_calibration moved from driver to uCode.
remove "disable_tx_power" from debugfs to minimize the confusion.
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>