Abandon parallel-scheduler backlog spec

Scrubbing the backlog directory.

This spec has been here since 2015.

The original authors should feel free to modify or downvote this commit
if the spec should continue to be considered for implementation now or
in the future.

Change-Id: If15ca7f542774aefcf6b173196f72012fc4c062e

specs/abandoned/index.rst

@@ -20,3 +20,9 @@ see what is going to happen::
 
 When you are satisfied, remove the ``-n`` option to make it happen for
 real.
+
+.. toctree::
+   :glob:
+   :maxdepth: 1
+
+   *

specs/abandoned/parallel-scheduler.rst

@@ -8,6 +8,9 @@
 Parallel Filter Scheduler
 ==========================
 
+.. note:: This spec was abandoned by efried on account of having been
+          sitting in the backlog directory since 2015.
+
 This backlog spec discusses the issues around parallelism and the current
 Filter Scheduler in Nova. This is particularly interesting for when
 migrating existing cells v1 users to cells v2.
@@ -423,5 +426,11 @@ Google omega paper: http://research.google.com/pubs/pub41684.html
 History
 =======
 
-None
+.. list-table:: Revisions
+   :header-rows: 1
+
+   * - Release Name
+     - Description
+   * - Train
+     - Abandoned
 

specs/backlog/redirects

@@ -0,0 +1 @@
+approved/parallel-scheduler.rst ../../abandoned/parallel-scheduler.rst