ARM: mx3: pcm037: remove unused variable

CC      arch/arm/mach-mx3/mach-pcm037.o
  arch/arm/mach-mx3/mach-pcm037.c: In function 'mxc_board_init':
  arch/arm/mach-mx3/mach-pcm037.c:584: warning: unused variable 'tmp'

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx3/mach-pcm037.c

@@ -581,7 +581,6 @@ __setup("otg_mode=", pcm037_otg_mode);
 static void __init mxc_board_init(void)
 {
 	int ret;
-	u32 tmp;
 
 	mxc_iomux_set_gpr(MUX_PGP_UH2, 1);