remove overlay classes in core.sip until some problems are fixed...

git-svn-id: http://svn.osgeo.org/qgis/trunk@10507 c8812cc2-4d05-0410-92ff-de0c093fc19c

python/core/core.sip

@@ -42,7 +42,6 @@
 %Include qgsmaptopixel.sip
 %Include qgsmarkercatalogue.sip
 %Include qgsmessageoutput.sip
-%Include qgsoverlayobject.sip
 %Include qgspoint.sip
 %Include qgsproject.sip
 %Include qgsprovidermetadata.sip
@@ -70,5 +69,4 @@
 %Include qgsvectordataprovider.sip
 %Include qgsvectorfilewriter.sip
 %Include qgsvectorlayer.sip
-%Include qgsvectoroverlay.sip