TUT: skip some tutorials when dynamicCode is not available

- silence failed restoration of controlDict from controlDict.orig
  (idempotent?)

tutorials/basic/potentialFoam/cylinder/Allrun

@@ -3,6 +3,8 @@ cd "${0%/*}" || exit                                # Run from this directory
 . ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions        # Tutorial run functions
 #------------------------------------------------------------------------------
 
+canCompile || exit 0    # Dynamic code
+
 restore0Dir
 runApplication blockMesh
 runApplication $(getApplication) -withFunctionObjects -writePhi -writep