powerpc/powernv/ioda: Finish removing explicit max window size check

9003a249 removed checn from the DMA window pages allocator, however
the VFIO driver tests limits before doing so by calling
the get_table_size hook which was left behind; this fixes it.

Fixes: 9003a249 "powerpc/powernv/ioda: Remove explicit max window size check"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/powernv/pci-ioda.c

@@ -2572,7 +2572,6 @@ static unsigned long pnv_pci_ioda2_get_table_size(__u32 page_shift,
 	unsigned long direct_table_size;
 
 	if (!levels || (levels > POWERNV_IOMMU_MAX_LEVELS) ||
-			(window_size > memory_hotplug_max()) ||
 			!is_power_of_2(window_size))
 		return 0;