KVM: arm/arm64: vgic: Remove useless arm-gic.h #include

Back in the days, vgic.c used to have an intimate knowledge of
the actual GICv2. These days, this has been abstracted away into
hardware-specific backends.

Remove the now useless arm-gic.h #include directive, making it
clear that GICv2 specific code doesn't belong here.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

virt/kvm/arm/vgic.c

@@ -26,8 +26,6 @@
 #include <linux/of_irq.h>
 #include <linux/uaccess.h>
 
-#include <linux/irqchip/arm-gic.h>
-
 #include <asm/kvm_emulate.h>
 #include <asm/kvm_arm.h>
 #include <asm/kvm_mmu.h>