Revert "javascript: Assign a default name to root nodejs resolves (#1…

[wisechengyi]

…9047)"

This reverts commit 0aedb6b.

contains breaking change:

Error: 3.20 [ERROR] Failed to load the pants.backend.experimental.javascript.register backend: ImportError("cannot import name 'UserChosenNodeJSResolveAliases' from 'pants.backend.javascript.subsystems.nodejs' (/home/gha/actions-runner1/_work/pants/pants/src/python/pants/backend/javascript/subsystems/nodejs.py)")
Traceback (most recent call last):
  File "/home/gha/actions-runner1/_work/pants/pants/src/python/pants/init/extension_loader.py", line 141, in load_backend
    module = importlib.import_module(backend_module)
  File "/home/gha/.pyenv/versions/3.9.13/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/home/gha/actions-runner1/_work/pants/pants/src/python/pants/backend/experimental/javascript/register.py", line 9, in <module>
    from pants.backend.javascript.goals import lockfile, tailor, test
  File "/home/gha/actions-runner1/_work/pants/pants/src/python/pants/backend/javascript/goals/lockfile.py", line 9, in <module>
    from pants.backend.javascript import nodejs_project_environment
  File "/home/gha/actions-runner1/_work/pants/pants/src/python/pants/backend/javascript/nodejs_project_environment.py", line 9, in <module>
    from pants.backend.javascript import package_json, resolve
  File "/home/gha/actions-runner1/_work/pants/pants/src/python/pants/backend/javascript/resolve.py", line 9, in <module>
    from pants.backend.javascript import nodejs_project
  File "/home/gha/actions-runner1/_work/pants/pants/src/python/pants/backend/javascript/nodejs_project.py", line 19, in <module>
    from pants.backend.javascript.subsystems.nodejs import NodeJS, UserChosenNodeJSResolveAliases
ImportError: cannot import name 'UserChosenNodeJSResolveAliases' from 'pants.backend.javascript.subsystems.nodejs' (/home/gha/actions-runner1/_work/pants/pants/src/python/pants/backend/javascript/subsystems/nodejs.py)