staging: r8188eu: remove _drv_ defines from include/rtw_debug.h

Remove the following defines:
_drv_always_
_drv_emerg_
_drv_alert_
_drv_crit_
_drv_err_
_drv_warning_
_drv_notice_
_drv_info_
_drv_debug_

from include/rtw_debug.h, as they are no longer used anywhere in the
driver, and are unlikely to be ever again with the removal of the old
debugging/logging code.
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20220516224640.90973-1-phil@philpotter.co.ukSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/rtw_debug.h

@@ -7,16 +7,6 @@
 #include "osdep_service.h"
 #include "drv_types.h"
 
-#define _drv_always_			1
-#define _drv_emerg_			2
-#define _drv_alert_			3
-#define _drv_crit_			4
-#define _drv_err_			5
-#define	_drv_warning_			6
-#define _drv_notice_			7
-#define _drv_info_			8
-#define	_drv_debug_			9
-
 #define _module_rtl871x_xmit_c_		BIT(0)
 #define _module_xmit_osdep_c_		BIT(1)
 #define _module_rtl871x_recv_c_		BIT(2)