Revert "add type Enum (#3681)" (#3688)
Revert "add type Enum (#3681)" (#3688)

This reverts commit 4cc3a8e42568d0e9fa90089a729bd159924ba1e3.
foam-framework/foam2,foam-framework/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2,jacksonic/vjlofvhjfgm,jacksonic/vjlofvhjfgm,foam-framework/foam2,foam-framework/foam2