Remove unused variable beacon_enable

beacon_enable is obsolete.

Signed-off-by: Eugene Krasnikov <k.eugene.e@gmail.com>
In AP mode delete bss when BEACON is disabled

Delete bss when AP mode is stopped to put HW in initial state.

Signed-off-by: Eugene Krasnikov <k.eugene.e@gmail.com>
Merge pull request #108 from KrasnikovEugene/ap_disabling

Ap disabling