powerpc/mpc52xx: remove dead code from GPIO driver

Eliminate duplicate return statements

Signed-off-by: Wolfram Sang <[e-mail]>
Signed-off-by: Grant Likely <[e-mail]>

arch/powerpc/platforms/52xx/mpc52xx_gpio.c

···
 {
 	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
 	struct mpc52xx_gpt __iomem *regs = mm_gc->regs;
-	unsigned int ret;
 
 	return (in_be32(&regs->status) & (1 << (31 - 23))) ? 1 : 0;
-
-	return ret;
 }
 
 static void