Remove address from DCO (go-gitea#22595)

I copy-pasted from https://developercertificate.org/

Author: yardenshoham

DCO

@@ -2,8 +2,6 @@ Developer Certificate of Origin
 Version 1.1
 
 Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
-660 York Street, Suite 102,
-San Francisco, CA 94110 USA
 
 Everyone is permitted to copy and distribute verbatim copies of this
 license document, but changing it is not allowed.
@@ -33,4 +31,4 @@ By making a contribution to this project, I certify that:
     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.
+    this project or the open source license(s) involved.