Remove the DCO-style contributor policy

It's being moved to the website and so doesn't need to also live
inside this repository.

Signed-off-by: Jason Self <j@jxself.org>

diff --git a/ATTESTATION.md b/ATTESTATION.md
deleted file mode 100644 (file)
index f71553f..0000000
--- a/ATTESTATION.md
+++ /dev/null
@@ -1,53 +0,0 @@
-Contributor Policy
-==================
-
-By making a contribution to this project, I certify that:
-
-(a) The contribution was created in whole or in part by me and I have
-    the right to submit it under the license indicated in the file; or
-
-(b) The contribution is based upon previous work that, to the best of
-    my knowledge, is covered under an appropriate license and I have
-    the right under that license to submit that work with
-    modifications, whether created in whole or in part by me, under
-    the same license (unless I am permitted to submit under a
-    different license), as indicated in the file; or
-
-(c) The contribution was provided directly to me by some other person
-    who certified (a), (b) or (c) and I have not modified it; and
-
-(d) In the case of each of (a), (b), or (c), I understand and agree
-    that this project and the contribution are public and that a
-    record of the contribution (including all personal information I
-    submit with it, including my sign-off) is maintained indefinitely
-    and may be redistributed consistent with this project or the
-    license indicated in the file.
-
-To indicate you understand and agree to this add a line to your
-contribution saying:
-
-    Signed-off-by: Your Name <user@host.root>
-
-using your real name and email address (sorry, no pseudonyms or
-anonymous contributions.)
-
-Git makes it easy to add the Signed-off-by.
-
-First, set up git with your real name and email address using commands
-such as these:
-
-    git config --global user.name "Your Name"
-    git config --global user.email user@host.root
-
-Once that is done just use -s or --signoff when you commit:
-
-    git commit -s or git commit --signoff
-
-Contributions that do not have a Signed-off-by cannot be accepted.
-
-This Contributor Policy is based on the Developer's Certificate of
-Origin 1.1 from
-<http://web.archive.org/web/20060524185355/http://www.osdlab.org:80/newsroom/press_releases/2004/2004_05_24_dco.html>,
-which is is (C) 2005 Open Source Development Labs, Inc. and licensed
-under the Creative Commons Attribution-ShareAlike 4.0 License:
-<https://creativecommons.org/licenses/by-sa/4.0/>