cc signature checked twice in AcceptToMemoryPool

[dimxy]

Cryptoconditions signature is checked twice in AcceptToMemoryPool()
Here:

if (!ContextualCheckInputs(tx, state, view, true, STANDARD_SCRIPT_VERIFY_FLAGS, true, txdata, Params().GetConsensus(), consensusBranchId, evalcodeChecker))

and here:

 if (!ContextualCheckInputs(tx, state, view, true, MANDATORY_SCRIPT_VERIFY_FLAGS, true, txdata, Params().GetConsensus(), consensusBranchId, evalcodeChecker))

I think it was supposed it is checked only at the call when STANDARD_SCRIPT_VERIFY_FLAGS is set when non-cc sigs are checked too.
Fix this to avoid extra processing