staging: rtl8192e: rtl8192e: rtl_core: remove unused global variable

Remove unused global variable channels from rtl_core.c
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Link: https://lore.kernel.org/r/20210807102232.6674-4-saurav.girepunje@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/rtl_core.c

@@ -23,7 +23,6 @@
 #include "rtl_pm.h"
 
 int hwwep = 1;
-static int channels = 0x3fff;
 static char *ifname = "wlan%d";
 
 
@@ -2642,8 +2641,6 @@ MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
 
 module_param(ifname, charp, 0644);
 module_param(hwwep, int, 0644);
-module_param(channels, int, 0644);
 
 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
-MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");