chore: Remove DCO (#1470)

CONTRIBUTING.md

@@ -2,32 +2,3 @@
 
 Thank you for your interest in contributing to Dozer! Contributions in various ways are most welcome.
 Please refer to [Contributing](https://getdozer.io/docs/contributing/overview) for more details.
-
-
-## Developer's Certificate of Origin 1.1
-
-<pre>
-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 open source 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 open source
-     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 open source 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.
-
- (d) 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 open source license(s) involved.
-</pre>