include/linux/pgtable.h: : remove redundant pte variable

Return value from ptep_get_and_clear_full() directly instead of taking
this in another redundant variable.

Link: https://lkml.kernel.org/r/202211282107437343474@zte.com.cnSigned-off-by: Nzhang songyi <zhang.songyi@zte.com.cn>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

include/linux/pgtable.h

@@ -425,9 +425,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm,
 					    unsigned long address, pte_t *ptep,
 					    int full)
 {
-	pte_t pte;
-	pte = ptep_get_and_clear(mm, address, ptep);
-	return pte;
+	return ptep_get_and_clear(mm, address, ptep);
 }
 #endif