clean up

demo/Button/ButtonSkia.lpi

@@ -32,14 +32,12 @@
       <Unit>
         <Filename Value="ButtonSkia.lpr"/>
         <IsPartOfProject Value="True"/>
-        <ResourceBaseClass Value=""/>
       </Unit>
       <Unit>
         <Filename Value="MainUnit.pas"/>
         <IsPartOfProject Value="True"/>
         <ComponentName Value="MainForm"/>
         <HasResources Value="True"/>
-        <ResourceBaseClass Value=""/>
       </Unit>
     </Units>
   </ProjectOptions>