ahci: drop unused board_ahci_noncq

Since commit 66a7cbc3 ("ahci: disable MSI instead of NCQ on Samsung
pci-e SSDs on macbooks") there is not a single entry in ahci_pci_tbl
which uses board_ahci_noncq.

Since this is dead code, let's remove it.
We cannot remove AHCI_HFLAG_NO_NCQ, as this flag is still used by other
boards.
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Niklas Cassel <cassel@kernel.org>

drivers/ata/ahci.c

@@ -52,7 +52,6 @@ enum board_ids {
 	board_ahci_ign_iferr,
 	board_ahci_no_debounce_delay,
 	board_ahci_nomsi,
-	board_ahci_noncq,
 	/*
 	 * board_ahci_pcs_quirk is for legacy Intel platforms.
 	 * Modern Intel platforms should use board_ahci instead.
@@ -159,13 +158,6 @@ static const struct ata_port_info ahci_port_info[] = {
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_ops,
 	},
-	[board_ahci_noncq] = {
-		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
-		.flags		= AHCI_FLAG_COMMON,
-		.pio_mask	= ATA_PIO4,
-		.udma_mask	= ATA_UDMA6,
-		.port_ops	= &ahci_ops,
-	},
 	[board_ahci_pcs_quirk] = {
 		AHCI_HFLAGS	(AHCI_HFLAG_INTEL_PCS_QUIRK),
 		.flags		= AHCI_FLAG_COMMON,