[REF] planner: no title on the top bar

lle's request

addons/web_planner/static/src/less/web_planner_common.less

@@ -221,7 +221,7 @@
 
     .o_planner_header {
         display: inline-block;
-        width: 33.33333333%;
+        width: 50%;
         padding: 5px 5px 5px 5px;
     }
 

addons/web_planner/static/src/xml/web_planner.xml

@@ -19,8 +19,6 @@
                     <i/>
                     <span>Mark As Done</span>
                 </button>
-            </div><div class="o_planner_header text-center">
-                <span class="help-block span-next o_planner_title"/>
             </div><div class="o_planner_header text-right">
                 <a class="btn btn-next">
                     Next step