I311 remove hydro_*_archive

[eyvorchuk]

Changes

This PR removes the hydro_model_archive and hydro_stn_archive portals, including any links to them and functions that determine whether or not a CMIP5 or an archived dataset should be loaded.

Gridded Hydrologic Model Output demo at https://services.pacificclimate.org/dev/portal/hydro_model_out/map/. Expected behaviour is that there is no link to an "Archive Hydrologic Model Output Portal" page and that attempting to access https://services.pacificclimate.org/dev/portal/hydro_model_archive/map/ results in a 404.

Modelled Streamflow Data demo at https://services.pacificclimate.org/dev/portal/hydro_stn_cmip5/map/. Expected behaviour is that there is no link to an "Archive Modeled Streamflow Portal" page and that attempting to access https://services.pacificclimate.org/dev/portal/hydro_stn_archive/map/ results in a 404.

Resolves #311

Checklist

• [x] Full integration tests are passing locally. → Tests in test_functional.py using the archive portals use the current portals instead.
• [x] Docs have been updated to reflect the changes. → References to the archive portals and functions in the docs have been removed.