ARM: pxa: remove unused variable in clock-pxa3xx.c

Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

arch/arm/mach-pxa/clock-pxa3xx.c

@@ -115,7 +115,6 @@ static unsigned long clk_pxa3xx_smemc_getrate(struct clk *clk)
 {
 	unsigned long acsr = ACSR;
 	unsigned long memclkcfg = __raw_readl(MEMCLKCFG);
-	unsigned int smcfs = (acsr >> 23) & 0x7;
 
 	return BASE_CLK * smcfs_mult[(acsr >> 23) & 0x7] /
 			df_clkdiv[(memclkcfg >> 16) & 0x3];