rtl8192du: declare MODULE_FIRMWARE() macros

Declare the firmware images used by rtl8192du, which helps to map
modules and required firmware images.

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop obsolete variables related to firmware loading

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function update_bcn_fixed_ie()

This falls through to the default condition and returns.

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function update_bcn_htcap_ie()

This falls through to the default condition and returns.

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function update_bcn_htinfo_ie()

This falls through to the default condition and returns.

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function update_bcn_rsn_ie()

This falls through to the default condition and returns.

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function update_bcn_wpa_ie()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function update_bcn_wmm_ie()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function update_bcn_p2p_ie()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: simplify update_bcn_vendor_spec_ie() after preceding changes

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function isAdaptorInfoFileValid()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function rtw_get_encrypt_decrypt_from_registrypriv()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused callback rtw_dummy_event_callback()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused callback rtw_fwdbg_event_callback()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function process_p2p_devdisc_resp()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function process_p2p_provdisc_resp()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function fire_write_MAC_cmd()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function dm_CheckRfCtrlGPIO()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function dm_RefreshRateAdaptiveMask()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: drop unused function dm_CheckProtection()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>