got rid of 'accept' dir in the tests

tests/accept/run/tbintre2.nim

@@ -1,31 +0,0 @@
-discard """
-  file: "tbintre2.nim"
-  output: "helloworld99110223"
-"""
-# Same test, but check module boundaries
-
-import tbintree
-
-var
-  root: PBinaryTree[string]
-  x = newNode("hello")
-add(root, x)
-add(root, "world")
-if find(root, "world"):
-  for str in items(root):
-    stdout.write(str)
-else:
-  stdout.writeln("BUG")
-
-var
-  r2: PBinaryTree[int]
-add(r2, newNode(110))
-add(r2, 223)
-add(r2, 99)
-for y in items(r2):
-  stdout.write(y)
-
-#OUT helloworld99110223
-
-
-