got rid of 'accept' dir in the tests

tests/accept/run/titer3.nim

@@ -1,22 +0,0 @@
-discard """
-  file: "titer3.nim"
-  output: "1231"
-"""
-
-iterator count1_3: int =
-  yield 1
-  yield 2
-  yield 3
-
-for x in count1_3():
-  write(stdout, $x)
-
-# yield inside an iterator, but not in a loop:
-iterator iter1(a: openArray[int]): int =
-  yield a[0]
-
-var x = [[1, 2, 3], [4, 5, 6]]
-for y in iter1(x[0]): write(stdout, $y)
-
-#OUT 1231
-