staging: rtl8188eu: remove GlobalDebugLevel variable

Remove GlobalDebugLevel variable and all of its uses, as it is now
no longer used anywhere in this driver.

Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210625000756.6313-23-phil@philpotter.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/odm.c

@@ -10,8 +10,6 @@
 #include "odm_precomp.h"
 #include "phy.h"
 
-u32 GlobalDebugLevel;
-
 /* avoid to warn in FreeBSD ==> To DO modify */
 static u32 EDCAParam[HT_IOT_PEER_MAX][3] = {
 	/*  UL			DL */

drivers/staging/rtl8188eu/include/rtw_debug.h

@@ -54,6 +54,4 @@
 #define _module_rtl8712_recv_c_		BIT(30)
 #define _module_rtl8712_led_c_		BIT(31)
 
-extern u32 GlobalDebugLevel;
-
 #endif	/* __RTW_DEBUG_H__ */

drivers/staging/rtl8188eu/os_dep/os_intfs.c

@@ -140,8 +140,6 @@ static void loadparam(struct adapter *padapter)
 {
 	struct registry_priv *registry_par = &padapter->registrypriv;
 
-	GlobalDebugLevel = rtw_debug;
-
 	memcpy(registry_par->ssid.ssid, "ANY", 3);
 	registry_par->ssid.ssid_length = 3;