powerpc/mpc86xx_hpcn: Remove obsolete statement

Comment says "Delete this in 2.6.27".

Do so now.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a47bb6a69c68156bc2d555152dab5a23733856b7.1630667612.git.christophe.leroy@csgroup.eu

arch/powerpc/platforms/86xx/mpc86xx_hpcn.c

@@ -95,12 +95,6 @@ static int __init mpc86xx_hpcn_probe(void)
 	if (of_machine_is_compatible("fsl,mpc8641hpcn"))
 		return 1;	/* Looks good */
 
-	/* Be nice and don't give silent boot death.  Delete this in 2.6.27 */
-	if (of_machine_is_compatible("mpc86xx")) {
-		pr_warn("WARNING: your dts/dtb is old. You must update before the next kernel release.\n");
-		return 1;
-	}
-
 	return 0;
 }