crypto: msm: Remove consumer pipe callback

Remove registration of call back function and the call back
function for consumer pipe operation.

The callback  does not do anything significant but
add to the latency per operation.

Change-Id: Id272a1311e2c3e2872091b599ac40f590fb9b0f7
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>