Revert npm package and pipeline commits from release/1.22 (#1332)

This PR reverts the following two commits from `release/1.22`

- Revert `b837aa1` - Get rid of vscode-engineering template in the npm
publish pipeline (#1328)
- Revert `d747327` - Add @vscode/python-environments npm package
(#1317)\n\nThese changes are not intended for the 1.22 release.

for increased stability for the release

Author: eleanorjboyd

.gitignore

@@ -3,7 +3,6 @@ dist
 node_modules
 .vscode-test/
 *.vsix
-*.tsbuildinfo
 .nox/
 .venv/
 **/__pycache__/