arm64: Remove enable_daif macro

Since commit bb8e93a ("arm64: entry: convert SError handlers to C"),
the enable_daif assembler macro is no longer used anywhere, so remove it.

Signed-off-by: Jinjie Ruan <[email protected]>
Reviewed-by: Mark Brown <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>

Author: Jinjie Ruan

arch/arm64/include/asm/assembler.h

@@ -38,10 +38,6 @@
 	msr	daifset, #0xf
 	.endm
 
-	.macro enable_daif
-	msr	daifclr, #0xf
-	.endm
-
 /*
  * Save/restore interrupts.
  */