vscode: drop pythonPath setting

Microsoft is in the process of deprecating the "python.pythonPath" setting. See https://github.com/microsoft/vscode-python/wiki/AB-Experiments#deprecatepythonpath

For the time being, we will need to opt into the experiment by adding

    "python.experiments.optInto": ["DeprecatePythonPath - experiment"]

to our user settings, then select the interpreter.

Author: dlech

.vscode/settings.json

@@ -1,6 +1,5 @@
 {
     "restructuredtext.confPath": "",
-    "python.pythonPath": ".venv",
     "python.linting.pylintEnabled": false,
     "python.linting.flake8Enabled": true,
     "python.linting.enabled": true