got rid of 'accept' dir in the tests

tests/accept/run/titervaropenarray.nim

@@ -1,16 +0,0 @@
-discard """
-  file: "titer2.nim"
-  output: "123"
-"""
-# Try to break the transformation pass:
-iterator iterAndZero(a: var openArray[int]): int =
-  for i in 0..len(a)-1:
-    yield a[i]
-    a[i] = 0
-
-var x = [[1, 2, 3], [4, 5, 6]]
-for y in iterAndZero(x[0]): write(stdout, $y)
-#OUT 123
-
-
-