t/t6035-merge-dir-to-symlink.sh: Remove TODO on passing test

Various merge-recursive cases were fixed in "merge-recursive: Fix D/F
conflicts" by Elijah Newren. Some tests were changed from
test_expect_failure to test_expect_success, but one fell through the
cracks.

Change that test to use test_expect_success.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t6035-merge-dir-to-symlink.sh

@@ -72,7 +72,7 @@ test_expect_success 'Handle F/D conflict, do not lose a/b-2/c/d in merge (resolv
 	test -f a/b-2/c/d
 '
 
-test_expect_failure 'Handle F/D conflict, do not lose a/b-2/c/d in merge (recursive)' '
+test_expect_success 'Handle F/D conflict, do not lose a/b-2/c/d in merge (recursive)' '
 	git reset --hard &&
 	git checkout master^0 &&
 	git merge -s recursive baseline^0 &&