staging: fsl-mc: Remove dead code

Remove one unused function from irq-gic-v3-its-fsl-mc-msi.c
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fsl-mc/bus/fsl-mc-private.h

@@ -460,8 +460,6 @@ void fsl_mc_msi_domain_free_irqs(struct device *dev);
 
 int __init its_fsl_mc_msi_init(void);
 
-void its_fsl_mc_msi_cleanup(void);
-
 int fsl_mc_find_msi_domain(struct device *mc_platform_dev,
 			   struct irq_domain **mc_msi_domain);
 

drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c

@@ -98,22 +98,3 @@ int __init its_fsl_mc_msi_init(void)
 
 	return 0;
 }
-
-void its_fsl_mc_msi_cleanup(void)
-{
-	struct device_node *np;
-
-	for (np = of_find_matching_node(NULL, its_device_id); np;
-	     np = of_find_matching_node(np, its_device_id)) {
-		struct irq_domain *mc_msi_domain = irq_find_matching_host(
-							np,
-							DOMAIN_BUS_FSL_MC_MSI);
-
-		if (!of_property_read_bool(np, "msi-controller"))
-			continue;
-
-		if (mc_msi_domain &&
-		    mc_msi_domain->host_data == &its_fsl_mc_msi_domain_info)
-			irq_domain_remove(mc_msi_domain);
-	}
-}