Staging: rtl8192e: Remove unnecessary braces from MgntQuery_MgntFrameTxRate()

Remove braces from if statement to fix checkpatch WARNING:
'braces {} are not necessary for single statement blocks'
Signed-off-by: Tree Davies <tdavies@darkphysics.net>
Link: https://lore.kernel.org/r/20231223015942.418263-2-tdavies@darkphysics.netSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtllib_softmac.c

@@ -172,9 +172,8 @@ static u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
 	else
 		rate = ieee->basic_rate & 0x7f;
 
-	if (rate == 0) {
+	if (rate == 0)
 		rate = 0x02;
-	}
 
 	return rate;
 }