staging: rtl8723bs: remove commented out MSG_8192C log

staging: rtl8723bs: remove commented out MSG_8192C log

remove commented out MSG_8192C log.

MSG_8192C is a private trace mechanism macro and is deactivated.
(i.e. the default behaviour is _do nothing_)
The only way to activate it is to manually define a debug
symbol.

So just remove it.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/845969563d7c90d1b7aa3215ae29dd91afc5100c.1617971592.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>