staging: rtl8192e: Remove unused variable ChannelAccessSetting

ChannelAccessSetting is never used. Remove resulting dead code.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/b88a31954532f47a4caf9abfcad8e20b32a618cc.1669156825.git.philipp.g.hortmann@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>