staging: rtl8723bs: remove BTC_PRINT_F macro definition

remove unused BTC_PRINT_F macro definition.
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/503423caee1cc2b7a8fe321e0efb546556f2887f.1619794331.git.fabioaiuto83@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/hal/HalBtcOutSrc.h

@@ -115,7 +115,6 @@ extern u32 		GLBtcDbgType[];
 /*  The following is for dbgview print */
 #if DBG
 #else
-#define BTC_PRINT_F(dbgtype, dbgflag, printstr)		 no_printk printstr
 #endif
 
 struct btc_board_info {