rtl8192du: drop rtl8192cu USB IDs (dead code removal)

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: spelling fix s/vender/vendor/

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: spelling fix s/dongole/dongle/

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: switch to using a normal usb_device_id table

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: use module_usb_driver() and switch to modern module init

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: remove special android code paths

The CONFIG_ANDROID symbol is not defined and none of the interfaces or
keywords are provided by any other in-kernel module (except rtl8188eu).

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: avoid pointless forward declarations in os_dep/usb_intf.c

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: remove unused function hex2byte_i()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: remove custom hex_to_bin() in favour of hex_to_bin()

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

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

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

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

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

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

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: remove unused struct rtw_cbuf

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: remove unused function rtw_division64()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: replace custom rtw_modular64() with do_div()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: replace custom rtw_yield_os() with yield()

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
rtl8192du: replace custom rtw_udelay_os() with udelay()

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