python: Remove Google-code path for flag-based interpreter path.

This only affects the Google build; the Bazel `--python_path` flag is still
implemented.

PiperOrigin-RevId: 505757395
Change-Id: I019afa973a67b2e74bfd7c73ddc8c7c96e9d29e8

src/main/starlark/builtins_bzl/common/python/py_executable.bzl

@@ -45,8 +45,6 @@ load(
  "BUILD_DATA_SYMLINK_PATH",
  "IS_BAZEL",
  "PY_RUNTIME_ATTR_NAME",
- "PY_RUNTIME_FRAGMENT_ATTR_NAME",
- "PY_RUNTIME_FRAGMENT_NAME",
 )
 
 _cc_common = _builtins.toplevel.cc_common
@@ -227,26 +225,20 @@ def _get_runtime_details(ctx, semantics):
  #
  # TODO(b/230428071): Remove this once Google's --python_binary flag is removed.
  # TOOD(bazelbuild/bazel#7901): Remove this once --python_path flag is removed.
- fragment = getattr(ctx.fragments, PY_RUNTIME_FRAGMENT_NAME)
- flag_interpreter_path = getattr(fragment, PY_RUNTIME_FRAGMENT_ATTR_NAME)
 
  if IS_BAZEL:
+ flag_interpreter_path = ctx.fragments.bazel_py.python_path
  toolchain_runtime, effective_runtime = _maybe_get_runtime_from_ctx(ctx)
  if not effective_runtime:
  # Clear these just in case
  toolchain_runtime = None
  effective_runtime = None
 
  else: # Google code path
- # TODO(b/230428071): This codepath can go away once Google's
- # --python_binary flag is removed.
- if flag_interpreter_path:
- toolchain_runtime = None
- effective_runtime = None
- else:
- toolchain_runtime, effective_runtime = _maybe_get_runtime_from_ctx(ctx)
- if not effective_runtime:
- fail("should have found runtime")
+ flag_interpreter_path = None
+ toolchain_runtime, effective_runtime = _maybe_get_runtime_from_ctx(ctx)
+ if not effective_runtime:
+ fail("Unable to find Python runtime")
 
  if effective_runtime:
  direct = [] # List of files

src/main/starlark/builtins_bzl/common/python/semantics.bzl

@@ -23,8 +23,6 @@ SRCS_ATTR_ALLOW_FILES = [".py", ".py3"]
 DEPS_ATTR_ALLOW_RULES = None
 
 PY_RUNTIME_ATTR_NAME = "_py_interpreter"
-PY_RUNTIME_FRAGMENT_NAME = "bazel_py"
-PY_RUNTIME_FRAGMENT_ATTR_NAME = "python_path"
 
 BUILD_DATA_SYMLINK_PATH = None