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

Commit 43fe1abc18a2 ("x86/uv: Use hierarchical irqdomain to manage UV interrupts")
removed the implementation but left declaration.

Signed-off-by: Yue Haibing <[e-mail]>
Signed-off-by: Thomas Gleixner <[e-mail]>
Link: https://lore.kernel.org/all/[e-mail]

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

···
 	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);