PYTHON-3447 Add back empty tls extra to avoid pip warnings

.github/workflows/test-python.yml

@@ -60,7 +60,7 @@ jobs:
  - name: Install dependencies
  run: |
  python -m pip install -U pip mypy
- pip install -e ".[zstd, srv, encryption, ocsp]"
+ pip install -e ".[zstd, encryption, ocsp]"
  - name: Run mypy
  run: |
  mypy --install-types --non-interactive bson gridfs tools pymongo

README.rst

@@ -137,7 +137,7 @@ Client-Side Field Level Encryption requires `pymongocrypt
 You can install all dependencies automatically with the following
 command::
 
- $ python -m pip install "pymongo[gssapi,aws,ocsp,snappy,srv,tls,zstd,encryption]"
+ $ python -m pip install "pymongo[gssapi,aws,ocsp,snappy,zstd,encryption]"
 
 Additional dependencies are:
 

doc/installation.rst

@@ -77,7 +77,7 @@ Wire protocol compression with zstandard requires `zstandard
 You can install all dependencies automatically with the following
 command::
 
- $ python3 -m pip install "pymongo[gssapi,aws,ocsp,snappy,srv,zstd,encryption]"
+ $ python3 -m pip install "pymongo[gssapi,aws,ocsp,snappy,zstd,encryption]"
 
 Installing from source
 ----------------------

setup.py

@@ -281,7 +281,8 @@ def build_extension(self, ext):
  "snappy": ["python-snappy"],
  "zstd": ["zstandard"],
  "aws": ["pymongo-auth-aws<2.0.0"],
- "srv": [],
+ "srv": [], # PYTHON-3423 Removed in 4.3 but kept here to avoid pip warnings.
+ "tls": [], # PYTHON-2133 Removed in 4.0 but kept here to avoid pip warnings.
 }
 
 # GSSAPI extras