Fixup! Remove erroneously added workbench scenario

problem_builder/templates/xml/mcq_with_html_choices.xml

-<vertical_demo>
-    <problem-builder url_name="mcq_with_comments" display_name="MCQ With Resizable popups" weight="1" enforce_dependency="false">
-        <pb-mcq name="mrq_1_1_7" question="What do you like in this MCQ?" correct_choices="gracefulness,elegance,beauty">
-            <pb-choice value="elegance"><strong>Its elegance</strong></pb-choice>
-            <pb-choice value="beauty"><em>Its beauty</em></pb-choice>
-            <pb-choice value="gracefulness"><strong>Its gracefulness</strong></pb-choice>
-            <pb-choice value="bugs"><span style="font-color:red">Its bugs</span></pb-choice>
-
-            <pb-tip values="gracefulness" width ="200" height = "200">This MCQ is indeed very graceful</pb-tip>
-            <pb-tip values="elegance" width ="600" height = "800">This is something everyone has to like about this MCQ</pb-tip>
-            <pb-tip values="beauty" width ="400" height = "600">This is something everyone has to like about beauty</pb-tip>
-            <pb-tip values="bugs" width = "100" height = "200">Nah, there isn\'t any!</pb-tip>
-        </pb-mcq>
-
-        <pb-message type="completed">
-            <p>Congratulations!</p>
-        </pb-message>
-        <pb-message type="incomplete">
-            <p>Still some work to do...</p>
-        </pb-message>
-    </problem-builder>
-</vertical_demo>