optimization: return preemptive if asset/assetallocation in checking for time to prune
optimization: return preemptive if asset/assetallocation in checking for time to prune

Former-commit-id: f4183c26fa18cff6ccc270e8e6e8ff408e858b97
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin