arm64: head: Drop SWAPPER_TABLE_SHIFT

There is no users of SWAPPER_TABLE_SHIFT after commit 84b04d3
("arm64: kernel: Create initial ID map from C code"). Just drop it.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20241014030341.995806-1-gshan@redhat.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Author: Gavin Shan

arch/arm64/include/asm/kernel-pgtable.h

@@ -26,7 +26,6 @@
 #define SWAPPER_SKIP_LEVEL	0
 #endif
 #define SWAPPER_BLOCK_SIZE	(UL(1) << SWAPPER_BLOCK_SHIFT)
-#define SWAPPER_TABLE_SHIFT	(SWAPPER_BLOCK_SHIFT + PAGE_SHIFT - 3)
 
 #define SWAPPER_PGTABLE_LEVELS		(CONFIG_PGTABLE_LEVELS - SWAPPER_SKIP_LEVEL)
 #define INIT_IDMAP_PGTABLE_LEVELS	(IDMAP_LEVELS - SWAPPER_SKIP_LEVEL)