Remove the check in the 'hg' integration tests for the 'heads' file, as that was a bit of an idiom

copied over from the svn module.

tests_new/integration/roles/test_hg/tasks/main.yml

@@ -55,14 +55,13 @@
   stat: path={{ checkout_dir }}/.hgtags
   register: tags
 
-- name: check for HEAD
-  stat: path={{ checkout_dir }}/.hg/cache/branchheads
-  register: head
-
 - name: check for remotes
   stat: path={{ checkout_dir }}/.hg/branch
   register: branches
 
+- debug: var=tags
+- debug: var=branches
+
 - name: assert presense of tags/trunk/branches
   assert:
     that: