sched, doc: Update sched-design-CFS.txt

Correct ->dequeue_tree() thinko into sched_class->dequeue_task
and drop all references to ->task_new() since it is obviously
gone.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1300815978-16618-1-git-send-email-bp@amd64.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/Documentation/scheduler/sched-design-CFS.txt b/Documentation/scheduler/sched-design-CFS.txt
index 8239ebb..9996199 100644
--- a/Documentation/scheduler/sched-design-CFS.txt
+++ b/Documentation/scheduler/sched-design-CFS.txt
@@ -164,7 +164,7 @@
    It puts the scheduling entity (task) into the red-black tree and
    increments the nr_running variable.
 
- - dequeue_tree(...)
+ - dequeue_task(...)
 
    When a task is no longer runnable, this function is called to keep the
    corresponding scheduling entity out of the red-black tree.  It decrements
@@ -195,11 +195,6 @@
    This function is mostly called from time tick functions; it might lead to
    process switch.  This drives the running preemption.
 
- - task_new(...)
-
-   The core scheduler gives the scheduling module an opportunity to manage new
-   task startup.  The CFS scheduling module uses it for group scheduling, while
-   the scheduling module for a real-time task does not use it.