[CFT:PATCH] Remove a seemingly unnecessary cache flush

[Russell King - ARM Linux]

On Mon, Dec 07, 2009 at 10:12:10PM +0000, Russell King - ARM Linux wrote:
> While looking into the possible msync() issue (which turned out to be a
> non-issue - it's covered by clever code), I found that we're flushing
> the same page multiple times.

I'm going to queue this patch up today since I believe it is correct,
though it would be nice to have a few more people test it on pre-ARMv6
hardware.