postgres provider: remove unused threading code

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13557 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: jef

src/providers/postgres/CMakeLists.txt

@@ -2,14 +2,7 @@
 ########################################################
 # Files
 
-SET(PG_SRCS
-qgspostgresprovider.cpp
-qgspostgisbox2d.cpp
-qgspostgisbox3d.cpp
-qgspostgrescountthread.cpp
-qgspostgresextentthread.cpp
-)
-
+SET(PG_SRCS qgspostgresprovider.cpp)
 SET(PG_MOC_HDRS qgspostgresprovider.h)