[gnome-chess] Remove prereleases from appdata

[Michael Catanzaro <mcatanzaro src gnome org>]

commit d01d8eef553ed65fb2b887f11e3c6f0f5e2c8802
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Mar 22 17:13:35 2021 -0500

    Remove prereleases from appdata

 data/org.gnome.Chess.appdata.xml.in | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/data/org.gnome.Chess.appdata.xml.in b/data/org.gnome.Chess.appdata.xml.in
index 57bbb7b..b01cbb7 100644
--- a/data/org.gnome.Chess.appdata.xml.in
+++ b/data/org.gnome.Chess.appdata.xml.in
@@ -40,7 +40,6 @@
   </kudos>
   <releases>
     <release version="40.0" date="2021-03-22" />
-    <release version="40.alpha" date="2021-01-07" />
     <release version="3.38.1" date="2020-12-06" />
     <release version="3.38.0" date="2020-09-11" />
     <release version="3.37.3" date="2020-07-02" />