staging: mt29f_spinand: Remove unneeded else following return

Remove unnecessary else when there is a return statement in the
corresponding if block. Coccinelle patch used:
@rule1@
expression e1;
@@

        if (e1) { ... return ...; }
-       else{
	         ...
-	    }

@rule2@
expression e2;
statement s1;
@@

	if(e2) { ... return ...; }
-       else
		s1

Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt29f_spinand/mt29f_spinand.c

@@ -175,7 +175,7 @@ static int wait_till_ready(struct spi_device *spi_nand)
 		retval = spinand_read_status(spi_nand, &stat);
 		if (retval < 0)
 			return -1;
-		else if (!(stat & 0x1))
+		if (!(stat & 0x1))
 			break;
 
 		cond_resched();