Remove from the demo project bootstrap files (demo project/demo features) the unused references to uploaded images.

In the current bootstrap files, we have still components referring to uploaded images that did not exist. Old DMS supported this, but the new implementation generate exception in this cases.

For example:
<sv:property sv:name="image" sv:type="String">
<sv:value>upload</sv:value>
</sv:property>
<sv:property sv:name="imageLocation" sv:type="String">
<sv:value>above</sv:value>
</sv:property>

but no bynary node are associated to this component.