[PATCH NEWLIB]remove redundant test in fwalk.c

[Bin Cheng]

Hi,
This is a simple patch removing redundant test in fwalk.c

Is it OK?

Thanks.
bin

2013-07-09  Bin Cheng  <bin.cheng@arm.com>
	* libc/stdio/fwalk.c (_fwalk): Remove redundant test.
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