Merge branch 'removeinstallingemptydatadir' into 'master'

Prevent installing redundant empty data directory

See merge request OpenMW/openmw!3253

CMakeLists.txt

@@ -1062,7 +1062,6 @@ elseif(NOT APPLE)
 
         # Install resources
         INSTALL(DIRECTORY "${INSTALL_SOURCE}/resources" DESTINATION "${DATADIR}" COMPONENT "Resources")
-        INSTALL(DIRECTORY DESTINATION "${DATADIR}/data" COMPONENT "Resources")
     endif(WIN32)
 endif(OPENMW_OSX_DEPLOYMENT AND APPLE)