[Quantal] Revert/drop EC2 performance patch

[Tim Gardner]

On 09/17/2012 09:26 AM, Stefan Bader wrote:
> As a result of some hallway discussion I found that Amazon
> actually does not really need this patch (anymore?). And
> looking at the code a bit more this would only make a difference
> if the blkback would pass the number of buffers via sysfs (which
> looking at an instance it does not). So this likely never made
> it into the dom0 of EC2 and we can drop it (or rebase away).
> 
> I do not think it is worth to SRU that back into previous releases
> as there is zero change in the drivers real behaviour.
> 
> -Stefan
> 
> 

rebased out of existence

-- 
Tim Gardner tim.gardner at canonical.com