staging: rtl8723bs: Remove led_blink_hdl() and everything related

staging: rtl8723bs: Remove led_blink_hdl() and everything related

Removed useless led_blink_hdl() prototype and definition.
Removed struct LedBlink_param. Removed LedBlink entries in
rtw_cmd_callback[] and in wlancmds[]. Everything related to LedBlink is
not anymore needed. Index of slots changed in arrays comments to reflect
current positions.

Reported-by: Julia Lawall <julia.lawall@inria.fr>
Reported-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20210415071731.25725-1-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>