staging: rtl8723bs: remove two unused functions

remove dump_drv_version() and dump_log_level() function
definitions and prototypes. Those functions are unused,
and add unnecessary wrap level to log calls.

They wrap DBG_871X_SEL_NL which will be replaced by
netdev_dbg() with coccinelle script application.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/2e8dd88c053735daed95701140b2f03b4cfe2a2e.1618325614.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_debug.c

@@ -14,16 +14,6 @@ u32 GlobalDebugLevel = _drv_err_;
 
 #include <rtw_version.h>
 
-void dump_drv_version(void *sel)
-{
-	DBG_871X_SEL_NL(sel, "%s %s\n", "rtl8723bs", DRIVERVERSION);
-}
-
-void dump_log_level(void *sel)
-{
-	DBG_871X_SEL_NL(sel, "log_level:%d\n", GlobalDebugLevel);
-}
-
 void sd_f0_reg_dump(void *sel, struct adapter *adapter)
 {
 	int i;

drivers/staging/rtl8723bs/include/rtw_debug.h

@@ -192,9 +192,6 @@
 
 #endif /* defined(_dbgdump) */
 
-void dump_drv_version(void *sel);
-void dump_log_level(void *sel);
-
 void sd_f0_reg_dump(void *sel, struct adapter *adapter);
 
 void mac_reg_dump(void *sel, struct adapter *adapter);