[Merge][CMake] Merged revisions : 6956

Revision  r6956
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No need to export target seperately. This is already handeled by dune_add_library.

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[[Imported from SVN: r7297]]

CMakeLists.txt

@@ -26,7 +26,6 @@ add_subdirectory("doc")
 add_subdirectory("cmake/modules")
 add_subdirectory("cmake/scripts")
 
-export(TARGETS dunecommon FILE DuneCommonTargets.cmake)
 # finalize the dune project, e.g. generating config.h etc.
 finalize_dune_project()
 include(CPack)