Remove unused code from Compare View version 1
Remove unused code from Compare View version 1

- remove scenarios models and templates used specifically & only by
comapre view version 1

WikiWatershed/model-my-watershed,WikiWatershed/model-my-watershed,WikiWatershed/model-my-watershed,WikiWatershed/model-my-watershed,WikiWatershed/model-my-watershed