added message for delete

Resources/translations/SonataUserBundle.en.xliff

@@ -14,6 +14,10 @@
                 <source>breadcrumb.link_user_edit</source>
                 <target>Edit</target>
             </trans-unit>
+            <trans-unit id="breadcrumb.link_user_delete">
+                <source>breadcrumb.link_user_delete</source>
+                <target>Delete</target>
+            </trans-unit>
             <trans-unit id="breadcrumb.link_group_list">
                 <source>breadcrumb.link_group_list</source>
                 <target>Groups</target>