staging: rtl8723bs: Remove unused function RTW_DISABLE_FUNC

Remove unused function RTW_DISABLE_FUNC and its comment.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/46545805edb962ae97b15be60e0a3446aae42701.1725826273.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Philipp Hortmann

drivers/staging/rtl8723bs/include/drv_types.h

@@ -452,14 +452,7 @@ struct adapter {
 #define DF_RX_BIT		BIT1
 #define DF_IO_BIT		BIT2
 
-/* define RTW_DISABLE_FUNC(padapter, func) (atomic_add(&adapter_to_dvobj(padapter)->disable_func, (func))) */
 /* define RTW_ENABLE_FUNC(padapter, func) (atomic_sub(&adapter_to_dvobj(padapter)->disable_func, (func))) */
-static inline void RTW_DISABLE_FUNC(struct adapter *padapter, int func_bit)
-{
-	int	df = atomic_read(&adapter_to_dvobj(padapter)->disable_func);
-	df |= func_bit;
-	atomic_set(&adapter_to_dvobj(padapter)->disable_func, df);
-}
 
 static inline void RTW_ENABLE_FUNC(struct adapter *padapter, int func_bit)
 {