staging: rtl8723bs: remove DebugLevel member in dm_odm_t struct

remove DebugLevel in dm_odm_t struct,
remove private debug level tracing.

remove unused variable as well to suppress compiler warning.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/ac4afb00f904511e0cbb23136f8e7a3e204ad7ed.1619794331.git.fabioaiuto83@gmail.com


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