Revert "Fix include of config.h"

This reverts commit 4f4d1ff.

Author: silvakid

cppconn/resultset.h

@@ -33,7 +33,7 @@
 #ifndef _SQL_RESULTSET_H_
 #define _SQL_RESULTSET_H_
 
-#include "cppconn/config.h"
+#include "config.h"
 
 #include <list>
 #include <map>