x86/irq: Remove irq_cfg.irq_remapped

Now there is no user of irq_cfg.irq_remapped, so remove it.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Joerg Roedel <jroedel@suse.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Joerg Roedel <joro@8bytes.org>
Link: http://lkml.kernel.org/r/1428978610-28986-14-git-send-email-jiang.liu@linux.intel.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/include/asm/hw_irq.h

@@ -193,7 +193,6 @@ struct irq_cfg {
 	u8			vector;
 	u8			move_in_progress : 1;
 #ifdef CONFIG_IRQ_REMAP
-	u8			remapped : 1;
 	union {
 		struct irq_2_iommu irq_2_iommu;
 		struct irq_2_irte  irq_2_irte;

drivers/iommu/amd_iommu.c

@@ -4125,7 +4125,6 @@ static void irq_remapping_prepare_irte(struct amd_ir_data *data,
 	union irte *irte = &data->irte_entry;
 	struct IO_APIC_route_entry *entry;
 
-	irq_cfg->remapped = 1;
 	data->irq_2_irte.devid = devid;
 	data->irq_2_irte.index = index + sub_handle;
 

drivers/iommu/intel_irq_remapping.c

@@ -67,7 +67,6 @@ static int alloc_irte(struct intel_iommu *iommu, int irq,
 		      struct irq_2_iommu *irq_iommu, u16 count)
 {
 	struct ir_table *table = iommu->ir_table;
-	struct irq_cfg *cfg = irq_cfg(irq);
 	unsigned int mask = 0;
 	unsigned long flags;
 	int index;
@@ -94,7 +93,6 @@ static int alloc_irte(struct intel_iommu *iommu, int irq,
 	if (index < 0) {
 		pr_warn("IR%d: can't allocate an IRTE\n", iommu->seq_id);
 	} else {
-		cfg->remapped = 1;
 		irq_iommu->iommu = iommu;
 		irq_iommu->irte_index =  index;
 		irq_iommu->sub_handle = 0;