ARM: zynq: Remove unused zynq_slcr_init() declaration

The zynq_slcr_init() has been removed since
commit 3329659 ("ARM: zynq: Simplify SLCR initialization"),
so remove it.

Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20240813103556.1138061-1-cuigaosheng1@huawei.com
Signed-off-by: Michal Simek <michal.simek@amd.com>

Author: gscui

arch/arm/mach-zynq/common.h

@@ -9,7 +9,6 @@
 #ifndef __MACH_ZYNQ_COMMON_H__
 #define __MACH_ZYNQ_COMMON_H__
 
-extern int zynq_slcr_init(void);
 extern int zynq_early_slcr_init(void);
 extern void zynq_slcr_cpu_stop(int cpu);
 extern void zynq_slcr_cpu_start(int cpu);