remove group constrainte, it's now a normal group

tests/dictionaries_old/80leadership_autofreeze/00-base.xml

@@ -0,0 +1,25 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<rougail version="0.9">
+  <variables>
+    <family name="general">
+      <variable name="server_deployed" type="boolean"/>
+      <variable name="leader" description="leader" auto_freeze="True" multi="True"/>
+      <variable name="follower1" multi="True"/>
+      <variable name="follower2" multi="True"/>
+    </family>
+  </variables>
+  <constraints>
+    <fill name="calc_val">
+      <param name="valeur">valfill</param>
+      <target>follower1</target>
+    </fill>
+    <fill name="calc_val">
+      <param type="variable">follower1</param>
+      <target>follower2</target>
+    </fill>
+    <group leader="leader">
+      <follower>follower1</follower>
+      <follower>follower2</follower>
+    </group>
+  </constraints>
+</rougail>