Clean up recipe per recommendation

[analog-cbarber]

noarch: python recipes should usually follow the syntax in our documentation for specifying the Python version.

• For the host section of recipe, you should usually use python {{ python_min }} for the python entry.*
• For the run section of recipe, you should usually use python >={{ python_min }} for the python entry.
• For the test.requires section of recipe, you should usually use python {{ python_min }} for the python entry.

If the package requires a newer Python version than the currently supported minimum version on conda-forge, you can override the python_min variable by adding a Jinja2 set statement at the top of your recipe (or using an equivalent context variable for v1 recipes).