Remove logic for legacy bundled stubs

[hauntsaninja]

For mypy v2

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

prefect (https://github.com/PrefectHQ/prefect)
- src/prefect/server/api/collections.py:6: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/server/utilities/messaging/memory.py:12: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/events/clients.py:23: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/events/clients.py:23: note: Hint: "python3 -m pip install types-cachetools"
- src/prefect/task_runs.py:8: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/results.py:25: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/server/events/actions.py:34: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/server/events/ordering.py:21: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/server/models/events.py:6: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/server/database/query_components.py:20: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/runner/runner.py:63: error: Library stubs not installed for "cachetools"  [import-untyped]
- src/prefect/blocks/redis.py:6: error: Library stubs not installed for "redis.asyncio"  [import-untyped]
- src/prefect/blocks/redis.py:6: note: Hint: "python3 -m pip install types-redis"
- src/prefect/blocks/redis.py:6: note: (or run "mypy --install-types" to install all missing stub packages)
- src/prefect/blocks/redis.py:6: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
- src/prefect/blocks/redis.py:6: error: Library stubs not installed for "redis"  [import-untyped]
- src/prefect/cli/deployment.py:708: error: Library stubs not installed for "dateparser"  [import-untyped]
- src/prefect/cli/deployment.py:708: note: Hint: "python3 -m pip install types-dateparser"

alectryon (https://github.com/cpitclaudel/alectryon)
- alectryon/cli.py:114: error: Library stubs not installed for "docutils.core"  [import-untyped]
- alectryon/cli.py:114: note: Hint: "python3 -m pip install types-docutils"
- alectryon/cli.py:114: note: (or run "mypy --install-types" to install all missing stub packages)
- alectryon/cli.py:114: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
- alectryon/cli.py:115: error: Library stubs not installed for "docutils.io"  [import-untyped]
- alectryon/docutils.py:71: error: Library stubs not installed for "docutils"  [import-untyped]
- alectryon/docutils.py:72: error: Library stubs not installed for "docutils.frontend"  [import-untyped]
- alectryon/docutils.py:73: error: Library stubs not installed for "docutils.transforms"  [import-untyped]
- alectryon/docutils.py:74: error: Library stubs not installed for "docutils.utils"  [import-untyped]
- alectryon/docutils.py:75: error: Library stubs not installed for "docutils.writers"  [import-untyped]
- alectryon/docutils.py:81: error: Library stubs not installed for "docutils.readers.standalone"  [import-untyped]
- alectryon/docutils.py:1197: error: Library stubs not installed for "docutils.statemachine"  [import-untyped]
+ alectryon/docutils.py:78: error: Unused "type: ignore" comment  [unused-ignore]
+ alectryon/docutils.py:79: error: Unused "type: ignore" comment  [unused-ignore]
+ alectryon/docutils.py:80: error: Unused "type: ignore" comment  [unused-ignore]

paasta (https://github.com/yelp/paasta)
- paasta_tools/contrib/get_running_task_allocation.py:15: error: Library stubs not installed for "simplejson"  [import-untyped]
- paasta_tools/contrib/get_running_task_allocation.py:15: note: Hint: "python3 -m pip install types-simplejson"
- paasta_tools/cli/cmds/validate.py:37: error: Library stubs not installed for "croniter"  [import-untyped]
- paasta_tools/cli/cmds/validate.py:37: note: Hint: "python3 -m pip install types-croniter"
- paasta_tools/cli/cmds/validate.py:37: note: (or run "mypy --install-types" to install all missing stub packages)
- paasta_tools/cli/cmds/validate.py:37: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

openlibrary (https://github.com/internetarchive/openlibrary)
- openlibrary/solr/update.py:7: error: Library stubs not installed for "aiofiles"  [import-untyped]
- openlibrary/solr/update.py:7: note: Hint: "python3 -m pip install types-aiofiles"
- openlibrary/solr/update.py:7: note: (or run "mypy --install-types" to install all missing stub packages)
- openlibrary/solr/update.py:7: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

pandas-stubs (https://github.com/pandas-dev/pandas-stubs)
- pandas-stubs/_libs/tslibs/offsets.pyi:15: error: Library stubs not installed for "dateutil.relativedelta"  [import-untyped]
- pandas-stubs/_libs/tslibs/offsets.pyi:15: note: Hint: "python3 -m pip install types-python-dateutil"
- pandas-stubs/_libs/tslibs/offsets.pyi:15: note: (or run "mypy --install-types" to install all missing stub packages)
- pandas-stubs/_libs/tslibs/offsets.pyi:15: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
- tests/test_timefuncs.py:11: error: Library stubs not installed for "dateutil.relativedelta"  [import-untyped]
- tests/test_scalars.py:12: error: Library stubs not installed for "dateutil.tz"  [import-untyped]
- tests/test_scalars.py:12: error: Library stubs not installed for "dateutil"  [import-untyped]

aiortc (https://github.com/aiortc/aiortc)
- src/aiortc/rtcdtlstransport.py:16: error: Library stubs not installed for "OpenSSL"  [import-untyped]
- src/aiortc/rtcdtlstransport.py:16: note: Hint: "python3 -m pip install types-pyOpenSSL"
- src/aiortc/rtcdtlstransport.py:16: note: (or run "mypy --install-types" to install all missing stub packages)
- src/aiortc/rtcdtlstransport.py:16: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

PyGithub (https://github.com/PyGithub/PyGithub)
- github/Team.py:68: error: Library stubs not installed for "deprecated"  [import-untyped]
- github/Repository.py:165: error: Library stubs not installed for "deprecated"  [import-untyped]
- github/AppAuthentication.py:39: error: Library stubs not installed for "deprecated"  [import-untyped]
- github/AppAuthentication.py:39: note: Hint: "python3 -m pip install types-Deprecated"
- github/AppAuthentication.py:39: note: (or run "mypy --install-types" to install all missing stub packages)
- github/AppAuthentication.py:39: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
- github/GithubIntegration.py:38: error: Library stubs not installed for "deprecated"  [import-untyped]

pandera (https://github.com/pandera-dev/pandera)
- tests/core/test_pandas_engine.py:13: error: Library stubs not installed for "pytz"  [import-untyped]
- tests/core/test_pandas_engine.py:13: note: Hint: "python3 -m pip install types-pytz"
- tests/core/test_pandas_engine.py:13: note: (or run "mypy --install-types" to install all missing stub packages)
- tests/core/test_pandas_engine.py:13: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

mitmproxy (https://github.com/mitmproxy/mitmproxy)
- mitmproxy/certs.py:16: error: Library stubs not installed for "OpenSSL"  [import-untyped]
+ mitmproxy/net/tls.py:21: error: Unused "type: ignore" comment  [unused-ignore]
- mitmproxy/net/tls.py:13: error: Library stubs not installed for "OpenSSL"  [import-untyped]
- mitmproxy/net/tls.py:15: error: Library stubs not installed for "OpenSSL.crypto"  [import-untyped]
- mitmproxy/utils/debug.py:13: error: Library stubs not installed for "OpenSSL"  [import-untyped]
- mitmproxy/utils/emoji.py:1860: error: Library stubs not installed for "requests"  [import-untyped]
- mitmproxy/utils/emoji.py:1860: note: Hint: "python3 -m pip install types-requests"
- mitmproxy/tls.py:5: error: Library stubs not installed for "OpenSSL"  [import-untyped]
- mitmproxy/proxy/layers/tls.py:11: error: Library stubs not installed for "OpenSSL"  [import-untyped]
- mitmproxy/proxy/server.py:23: error: Library stubs not installed for "OpenSSL"  [import-untyped]
- mitmproxy/addons/tlsconfig.py:13: error: Library stubs not installed for "OpenSSL"  [import-untyped]
- mitmproxy/addons/tlsconfig.py:13: note: Hint: "python3 -m pip install types-pyOpenSSL"
- mitmproxy/addons/tlsconfig.py:13: note: (or run "mypy --install-types" to install all missing stub packages)
- mitmproxy/addons/tlsconfig.py:13: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

dulwich (https://github.com/dulwich/dulwich)
- dulwich/contrib/requests_vendor.py:36: error: Library stubs not installed for "requests"  [import-untyped]
- dulwich/contrib/requests_vendor.py:36: note: Hint: "python3 -m pip install types-requests"
- dulwich/contrib/requests_vendor.py:36: note: (or run "mypy --install-types" to install all missing stub packages)
- dulwich/contrib/requests_vendor.py:36: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports