x86/platform/uv: Remove unused declaration uv_irq_2_mmr_info()

Commit 43fe1abc ("x86/uv: Use hierarchical irqdomain to manage UV interrupts")
removed the implementation but left declaration.
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240814031636.1304772-1-yuehaibing@huawei.com

arch/x86/include/asm/uv/uv_irq.h

@@ -31,7 +31,6 @@ enum {
 	UV_AFFINITY_CPU
 };
 
-extern int uv_irq_2_mmr_info(int, unsigned long *, int *);
 extern int uv_setup_irq(char *, int, int, unsigned long, int);
 extern void uv_teardown_irq(unsigned int);