staging: rtl8192e: Remove _rtl92e_get_supported_wireless_mode

Remove _rtl92e_get_supported_wireless_mode to improve readability.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/f8470fff23d5870cbcda3d6f4978ba17016a8fe8.1679949171.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/rtl_core.c

@@ -593,18 +593,10 @@ static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
 	}
 }
 
-static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
-{
-	u8 ret = 0;
-
-	ret = (WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B);
-	return ret;
-}
-
 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
-	u8 support_mode = _rtl92e_get_supported_wireless_mode(dev);
+	u8 support_mode = (WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B);
 
 	if ((wireless_mode == WIRELESS_MODE_AUTO) ||
 	    ((wireless_mode & support_mode) == 0)) {