[polari] appdata: Don't use the wrong height and width

[Richard Hughes <rhughes src gnome org>]

commit cfee20aa98bc1492f56d127bc810537e3327f877
Author: Richard Hughes <richard hughsie com>
Date:   Wed Aug 6 19:01:13 2014 +0200

    appdata: Don't use the wrong height and width
    
    It's optional, so in this case it's quite safe to drop it.

 data/appdata/org.gnome.Polari.appdata.xml.in |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/data/appdata/org.gnome.Polari.appdata.xml.in b/data/appdata/org.gnome.Polari.appdata.xml.in
index a2d46e1..092ba46 100644
--- a/data/appdata/org.gnome.Polari.appdata.xml.in
+++ b/data/appdata/org.gnome.Polari.appdata.xml.in
@@ -19,9 +19,9 @@
     </_p>
   </description>
   <screenshots>
-    <screenshot type="default" width="1200" 
height="675">https://git.gnome.org/browse/polari/plain/data/appdata/polari-main.png</screenshot>
-    <screenshot width="1200" 
height="675">https://git.gnome.org/browse/polari/plain/data/appdata/polari-user-list.png</screenshot>
-    <screenshot width="1200" 
height="675">https://git.gnome.org/browse/polari/plain/data/appdata/polari-connections.png</screenshot>
+    <screenshot 
type="default">https://git.gnome.org/browse/polari/plain/data/appdata/polari-main.png</screenshot>
+    <screenshot>https://git.gnome.org/browse/polari/plain/data/appdata/polari-user-list.png</screenshot>
+    <screenshot>https://git.gnome.org/browse/polari/plain/data/appdata/polari-connections.png</screenshot>
   </screenshots>
   <url type="homepage">https://wiki.gnome.org/Apps/Polari</url>
   <updatecontact>fmuellner gnome org</updatecontact>