arm64: remove unused ARCH_PFN_OFFSET

This is only relevant to the FLATMEM memory model, which isn't an option
since commit 782276b4d0 ("arm64: Force SPARSEMEM_VMEMMAP as the only
memory management model").

Signed-off-by: Omar Sandoval <osandov@fb.com>
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Omar Sandoval 2025-10-08 16:01:30 -07:00 • committed by Catalin Marinas
commit bf6b3fed18