mips: Remove __GFP_HIGHMEM masking

Remove unnecessary __GFP_HIGHMEM masking, which was introduced with
commit 3e14fb1 ("mips: convert various functions to use ptdescs").
GFP_KERNEL doesn't contain __GFP_HIGHMEM.

Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Author: VMoola

arch/mips/include/asm/pgalloc.h

@@ -81,8 +81,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
 {
 	pud_t *pud;
-	struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM,
-			PUD_TABLE_ORDER);
+	struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, PUD_TABLE_ORDER);
 
 	if (!ptdesc)
 		return NULL;