arm64: debug: remove unused local_dbg_{enable, disable} macros

The debug enable/disable macros are not used anywhere in the kernel, so
remove them from irqflags.h

Reported-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h
index 11cc941..8c58128 100644
--- a/arch/arm64/include/asm/irqflags.h
+++ b/arch/arm64/include/asm/irqflags.h
@@ -110,8 +110,5 @@
 		: : "r" (flags) : "memory");				\
 	} while (0)
 
-#define local_dbg_enable()	asm("msr	daifclr, #8" : : : "memory")
-#define local_dbg_disable()	asm("msr	daifset, #8" : : : "memory")
-
 #endif
 #endif