[devhelp] parser: comment for version 3: remove recommendation for new xmlns

[Sébastien Wilmet <swilmet src gnome org>]

commit d2138be48fd975667dab320fcac91b28c07dd8d8
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Dec 3 12:25:27 2017 +0100

    parser: comment for version 3: remove recommendation for new xmlns
    
    I thought that the git repo URL was something more stable than the
    website, but with the GitLab migration on gnome.org, the git repo URL
    will change... So remove that recommendation.

 src/dh-parser.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/dh-parser.c b/src/dh-parser.c
index 534e722..9aa8eeb 100644
--- a/src/dh-parser.c
+++ b/src/dh-parser.c
@@ -29,8 +29,7 @@
 /* Possible things to do for the version 3 of the Devhelp index file format (if
  * one day there is a strong desire to create a new version):
  * - Replace <functions> element by <keywords>.
- * - Maybe have an up-to-date URI for the NAMESPACE (an URI to the git repo?
- *   probably more stable than the web site).
+ * - Maybe have an up-to-date URI for the NAMESPACE.
  * - Rename some attributes of <book>:
  *      - name -> id
  *      - title -> name