ppc64: Remove redundant PTE checks

Remove redundant checks for PTE (Page Table Entry) because those
conditions are already covered.

        if (!(pte & _PAGE_PRESENT)) {
                ...
                return FALSE;
        }

        if (!pte)
                return FALSE;

The second pte check is redundant because it holds true only when pte is
0. If pte is 0 then (!(pte & _PAGE_PRESENT)) is true and it will return
false. So there is no need for one more pte check.

Signed-off-by: Likhitha Korrapati <likhitha@linux.ibm.com>

ppc64.c

@@ -968,9 +968,6 @@ ppc64_vtop(ulong vaddr, ulong *pgd, physaddr_t *paddr, int verbose)
 		return FALSE;
 	}
 
-	if (!pte)
-		return FALSE;
-
 	*paddr = PAGEBASE(PTOB(pte >> PTE_RPN_SHIFT_DEFAULT)) + PAGEOFFSET(vaddr);
 
 	if (verbose) {
@@ -1077,9 +1074,6 @@ ppc64_vtop_level4(ulong vaddr, ulong *level4, physaddr_t *paddr, int verbose)
 		return FALSE;
 	}
 
-	if (!pte)
-		return FALSE;
-
 out:
 	if (hugepage_type) {
 		if (hugepage_type == 2) {