Remove branching by Python version.

Author: tvalentyn

sdks/python/pyproject.toml

@@ -21,8 +21,7 @@
 requires = [
     "setuptools",
     "wheel>=0.36.0",
-    "grpcio-tools==1.62.1; python_version <= '3.12'",
-    "grpcio-tools==1.71.0; python_version >= '3.13'",
+    "grpcio-tools==1.71.0",
     "mypy-protobuf==3.5.0",
     # Avoid https://github.com/pypa/virtualenv/issues/2006
     "distlib==0.3.9",

sdks/python/setup.py

@@ -375,10 +375,7 @@ def get_portability_package_data():
       ext_modules=extensions,
       install_requires=[
           'cryptography>=39.0.0,<48.0.0',
-          # reconcile envoy-data-plane dependency for python < 3.12 and >= 3.13
-          # when grpcio unpinned, check for protobuf version compatibility
-          'envoy-data-plane>=1.0.3,<2; python_version >= "3.13"',
-          'envoy-data-plane<0.3.0; python_version < "3.13"',
+          'envoy-data-plane>=1.0.3,<2',
           'fastavro>=0.23.6,<2',
           'fasteners>=0.3,<1.0',
           'grpcio>=1.33.1,<2,!=1.48.0,!=1.59.*,!=1.60.*,!=1.61.*,!=1.62.0,!=1.62.1,!=1.66.*,!=1.67.*,!=1.68.*,!=1.69.*,!=1.70.*',  # pylint: disable=line-too-long