[PATCH] mm/oom_kill.c trivial cleanup

From: "Luiz Fernando N. Capitulino" <lcapitulino@prefeitura.sp.gov.br>

Remove duplicated assignment.

Signed-off by: Luiz Capitulino <lcapitulino@prefeitura.sp.gov.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

mm/oom_kill.c

@@ -245,7 +245,6 @@ void out_of_memory(void)
 	 * If it's been a long time since last failure,
 	 * we're not oom.
 	 */
-	last = now;
 	if (since > 5*HZ)
 		goto reset;