powerpc/math-emu: Remove redundant 'ret'

FP_DECL_EX is already used, so ret is redundant.
And FP_SET_EXCEPTION will add status into return value.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/math-emu/fadd.c

@@ -13,7 +13,6 @@ fadd(void *frD, void *frA, void *frB)
 	FP_DECL_D(B);
 	FP_DECL_D(R);
 	FP_DECL_EX;
-	int ret = 0;
 
 #ifdef DEBUG
 	printk("%s: %p %p %p\n", __func__, frD, frA, frB);