remove group constrainte, it's now a normal group

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

@@ -0,0 +1,21 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<rougail version="0.9">
+  <variables>
+    <family name="general">
+      <variable name="varname" type="string" description="No change" multi="True">
+        <value>val1</value>
+        <value>val2</value>
+      </variable>
+    </family>
+    <family name="dyn" dynamic="varname">
+      <variable name="vardyn" type="number" description="No change"/>
+    </family>
+  </variables>
+  <constraints>
+    <check name="valid_entier">
+      <param name="mini" type="number">0</param>
+      <param name="maxi" type="number">100</param>
+      <target>vardynval1</target>
+    </check>
+  </constraints>
+</rougail>