test_rhashtable: Remove bogus max_size setting

Now that resizing is completely automatic, we need to remove
the max_size setting or the test will fail.

Reported-by: Fengguang Wu <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>
Acked-by: Thomas Graf <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

lib/test_rhashtable.c

···
 	.key_offset = offsetof(struct test_obj, value),
 	.key_len = sizeof(int),
 	.hashfn = jhash,
-	.max_size = 2, /* we expand/shrink manually here */
 	.nulls_base = (3U << RHT_BASE_SHIFT),
 };