Remove status bar from dicom app widget

Not sure what it was doing there in the first place, but
this extra widget added a resize handle in the middle
of the widget, which was very odd and non-standard (and
pretty useless, I think).

Libs/DICOM/Widgets/Resources/UI/ctkDICOMAppWidget.ui

@@ -35,9 +35,6 @@
     </widget>
    </item>
    <item>
-    <widget class="QStatusBar" name="statusbar"/>
-   </item>
-   <item>
     <layout class="QVBoxLayout" name="verticalLayout">
      <item>
       <layout class="QHBoxLayout" name="topLayout">