Kernel: Removed constraints package form plugin.xml

Leftovers of old metamodel element...

Issue-Ref: 3977
Issue-Url: https://af3-developer.fortiss.org/issues/3977



Signed-off-by: Andreas Bayha <bayha@fortiss.org>

org.fortiss.tooling.kernel/plugin.xml

@@ -22,14 +22,6 @@
       </package>
    </extension>
 
-   <extension point="org.eclipse.emf.ecore.generated_package">
-      <!-- @generated kernel -->
-      <package
-            uri="http://www.fortiss.org/tooling/base/model/element/constraints"
-            class="org.fortiss.tooling.kernel.model.constraints.ConstraintsPackage"
-            genModel="model/kernel.genmodel"/>
-   </extension>
-
    <extension
          point="org.fortiss.tooling.kernel.modelPrototypeProvider">
       <modelPrototypeProvider