RISCV64: REVYOS: Revert "riscv: Enable pcpu page first chunk allocator"

This reverts commit 6b9f29b.

Author: RevySR

arch/riscv/Kconfig

@@ -491,9 +491,7 @@ config NUMA
 	depends on SMP && MMU
 	select ARCH_SUPPORTS_NUMA_BALANCING
 	select GENERIC_ARCH_NUMA
-	select HAVE_SETUP_PER_CPU_AREA
 	select NEED_PER_CPU_EMBED_FIRST_CHUNK
-	select NEED_PER_CPU_PAGE_FIRST_CHUNK
 	select OF_NUMA
 	select USE_PERCPU_NUMA_NODE_ID
 	help

arch/riscv/mm/kasan_init.c

@@ -441,14 +441,6 @@ static void __init kasan_shallow_populate(void *start, void *end)
 	kasan_shallow_populate_pgd(vaddr, vend);
 }
 
-#ifdef CONFIG_KASAN_VMALLOC
-void __init kasan_populate_early_vm_area_shadow(void *start, unsigned long size)
-{
-	kasan_populate(kasan_mem_to_shadow(start),
-		       kasan_mem_to_shadow(start + size));
-}
-#endif
-
 static void __init create_tmp_mapping(void)
 {
 	void *ptr;