[gimp] desktop: fix our AppStream file for appstreamcli validation.

[Jehan <jehanp src gnome org>]

commit e3d7526732d07678322f29efab1de49861412d06
Author: Jehan <jehan girinstud io>
Date:   Tue May 3 22:10:30 2022 +0200

    desktop: fix our AppStream file for appstreamcli validation.
    
    Adding a TODO as date was passing through with appstream-util in relax
    validation mode, but there is no such mode in appstreamcli.
    
    Anyway since I have manual check steps for the AppStream files in
    devel-docs/release-howto.txt, I never missed setting the date right (so
    far! Knocks on wood…) in the AppStream metadata. Therefore let's drop
    this trick for now and see how it goes.
    
    It should fix the appstream unit check, but only when using appstreamcli
    0.15.3 or over (this version is already on Debian testing).
    
    See issue #8140.

 desktop/org.gimp.GIMP.appdata.xml.in.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/desktop/org.gimp.GIMP.appdata.xml.in.in b/desktop/org.gimp.GIMP.appdata.xml.in.in
index 7f61019817..c6f9b138b9 100644
--- a/desktop/org.gimp.GIMP.appdata.xml.in.in
+++ b/desktop/org.gimp.GIMP.appdata.xml.in.in
@@ -75,7 +75,7 @@
   </provides>
 
   <releases>
-    <release version="2.99.11" date="TODO" type="development">
+    <release version="2.99.11" type="development">
       <description>
         <_p>
         One step further towards GIMP 3.0, GIMP 2.99.12 comes along with the following noteworthy 
improvements: