arm/gic-v3: Remove an unused macro MAX_RDIST_COUNT

The macro MAX_RDIST_COUNT is not being used after converting code
to handle number of redistributor dynamically. So remove it from
header file and the two other panic() messages that are not valid
anymore.

Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
Acked-by: Julien Grall <julien.grall@arm.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>

xen/arch/arm/gic-v3.c

@@ -1195,10 +1195,6 @@ static void __init gicv3_dt_init(void)
                 &gicv3.rdist_count) )
         gicv3.rdist_count = 1;
 
-    if ( gicv3.rdist_count > MAX_RDIST_COUNT )
-        panic("GICv3: Number of redistributor regions is more than"
-              "%d (Increase MAX_RDIST_COUNT!!)\n", MAX_RDIST_COUNT);
-
     rdist_regs = xzalloc_array(struct rdist_region, gicv3.rdist_count);
     if ( !rdist_regs )
         panic("GICv3: Failed to allocate memory for rdist regions\n");
@@ -1484,10 +1480,6 @@ static void __init gicv3_acpi_init(void)
         gicr_table = false;
     }
 
-    if ( count > MAX_RDIST_COUNT )
-        panic("GICv3: Number of redistributor regions is more than"
-              "%d (Increase MAX_RDIST_COUNT!!)\n", MAX_RDIST_COUNT);
-
     rdist_regs = xzalloc_array(struct rdist_region, count);
     if ( !rdist_regs )
         panic("GICv3: Failed to allocate memory for rdist regions\n");

xen/include/asm-arm/gic.h

@@ -20,7 +20,6 @@
 
 #define NR_GIC_LOCAL_IRQS  NR_LOCAL_IRQS
 #define NR_GIC_SGI         16
-#define MAX_RDIST_COUNT    4
 
 #define GICD_CTLR       (0x000)
 #define GICD_TYPER      (0x004)