staging: rtl8192e: Remove unused variable rt_global_debug_component

Remove unused variable rt_global_debug_component.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/082272e20dc0659e7700f7756a6bf1a8b71c411e.1696548527.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtllib_debug.h

@@ -14,8 +14,6 @@
 #define DRV_NAME "rtllib_92e"
 #endif
 
-extern u32 rt_global_debug_component;
-
 /* These are the defines for rt_global_debug_component */
 enum RTL_DEBUG {
 	COMP_TRACE		= BIT(0),

drivers/staging/rtl8192e/rtllib_module.c

@@ -34,9 +34,6 @@
 #include <net/arp.h>
 #include "rtllib.h"
 
-u32 rt_global_debug_component = COMP_ERR;
-EXPORT_SYMBOL(rt_global_debug_component);
-
 static inline int rtllib_networks_allocate(struct rtllib_device *ieee)
 {
 	if (ieee->networks)