i2c: Remove caller signal_pending branch predictions

This is already done for us internally by the signal machinery.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-ibm_iic.c

@@ -437,7 +437,7 @@ static int iic_wait_for_tc(struct ibm_iic_private* dev){
 				break;
 			}
 
-			if (unlikely(signal_pending(current))){
+			if (signal_pending(current)){
 				DBG("%d: poll interrupted\n", dev->idx);
 				ret = -ERESTARTSYS;
 				break;