MAINT: Remove ESPEI 0.9 deprecations (plotting and scheduler="None") (#…

…257)

Remove deprecated functionality scheduled for removal in ESPEI 0.9:
- `espei.plot`: 
  - `plot_parameters`, replaced with `plot_interaction` and `plot_endmember`
  - `eqdataplot` and `multiplot`, replace with calling appropriate PyCalphad phase diagram plotting function and `espei.plot.dataplot`
  - `_compare_data_to_parameters` only used by the above functions
- YAML input: `scheduler = "None"`, replaced by `scheduler = null`

espei/espei_script.py

@@ -115,12 +115,6 @@ def get_run_settings(input_dict):
         if run_settings['mcmc'].get('restart_trace') is None:
             run_settings['mcmc']['chains_per_parameter'] = run_settings['mcmc'].get('chains_per_parameter', 2)
             run_settings['mcmc']['chain_std_deviation'] = run_settings['mcmc'].get('chain_std_deviation', 0.1)
-        if run_settings['mcmc']['scheduler'] == 'None':
-            warnings.warn(
-                "Setting scheduler to the string 'None' will be deprecated in ESPEI "
-                "0.9. Use `null` in YAML or `None` in Python.", FutureWarning
-            )
-            run_settings['mcmc']['scheduler'] = None
     if not schema.validate(run_settings):
         raise ValueError(schema.errors)
     if run_settings.get("generate_parameters") is not None:

espei/input-schema.yaml

@@ -95,8 +95,8 @@ mcmc:
       required: True
     scheduler: # scheduler to use for parallelization
       type: string
-      default: dask # dask | None | A JSON file
-      regex: 'dask|None|.*\.json$'
+      default: dask # dask | A JSON file
+      regex: 'dask|.*\.json$'
       required: True
       nullable: True
     cores: