staging: rtl8192e: clean unnecessary braces warning on r8192E_phy.c

Clean a checkpatch.pl warning of type "braces {} are not necessary for
single statement blocks" on r8192E_phy.c file.
Signed-off-by: David Tadokoro <davidbtadokoro@usp.br>
Link: https://lore.kernel.org/r/20230528154010.3068-1-davidbtadokoro@usp.brSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c

@@ -1099,9 +1099,8 @@ static bool _rtl92e_set_rf_power_state(struct net_device *dev,
 		break;
 	}
 
-	if (bResult) {
+	if (bResult)
 		priv->rtllib->rf_power_state = rf_power_state;
-	}
 
 	priv->set_rf_pwr_state_in_progress = false;
 	return bResult;