irqchip: mips-gic: Remove gic_init()

All in-tree platforms now probe the GIC driver using device tree, and as
such nothing calls gic_init() any longer. Remove the dead code.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17043/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

drivers/irqchip/irq-mips-gic.c

@@ -737,13 +737,6 @@ static void __init __gic_init(unsigned long gic_base_addr,
 	gic_basic_init();
 }
 
-void __init gic_init(unsigned long gic_base_addr,
-		     unsigned long gic_addrspace_size,
-		     unsigned int cpu_vec, unsigned int irqbase)
-{
-	__gic_init(gic_base_addr, gic_addrspace_size, cpu_vec, irqbase, NULL);
-}
-
 static int __init gic_of_init(struct device_node *node,
 			      struct device_node *parent)
 {

include/linux/irqchip/mips-gic.h

@@ -19,9 +19,6 @@
 
 extern unsigned int gic_present;
 
-extern void gic_init(unsigned long gic_base_addr,
-	unsigned long gic_addrspace_size, unsigned int cpu_vec,
-	unsigned int irqbase);
 extern int gic_get_c0_compare_int(void);
 extern int gic_get_c0_perfcount_int(void);
 extern int gic_get_c0_fdc_int(void);