remove non existing icons from topology plugins resources

followup 6e9ff36
can be reverted once files are added

Author: 3nids

src/plugins/topology/topol.qrc

@@ -1,8 +1,5 @@
 <RCC>
     <qresource prefix="/topology" >
         <file>mActionTopologyChecker.svg</file>
-        <file>mActionConfigure.svg</file>
-        <file>mActionValidateAll.svg</file>
-        <file>mActionValidateExtent.svg</file>
     </qresource>
 </RCC>