mark the ignore_root_user_error override deprecated

Author: Wyverald

python/private/python.bzl

@@ -693,18 +693,7 @@ dependencies are introduced.
         ),
         "ignore_root_user_error": attr.bool(
             default = True,
-            doc = """\
-The Python runtime installation is made read only. This improves the ability for
-Bazel to cache it by preventing the interpreter from creating `.pyc` files for
-the standard library dynamically at runtime as they are loaded (this often leads
-to spurious cache misses or build failures).
-
-However, if the user is running Bazel as root, this read-onlyness is not
-respected. Bazel will print a warning message when it detects that the runtime
-installation is writable despite being made read only (i.e. it's running with
-root access). If this attribute is set to `False`, Bazel will make it a hard
-error to run with root access instead.
-""",
+            doc = """Deprecated; do not use. This attribute has no effect.""",
             mandatory = False,
         ),
         "minor_mapping": attr.string_dict(

tests/python/python_tests.bzl

@@ -238,38 +238,6 @@ def _test_default_non_rules_python_ignore_root_user_error(env):
 
 _tests.append(_test_default_non_rules_python_ignore_root_user_error)
 
-def _test_default_non_rules_python_ignore_root_user_error_override(env):
-    py = parse_modules(
-        module_ctx = _mock_mctx(
-            _mod(
-                name = "my_module",
-                toolchain = [_toolchain("3.12")],
-                override = [_override(ignore_root_user_error = False)],
-            ),
-            _mod(name = "rules_python", toolchain = [_toolchain("3.11")]),
-        ),
-    )
-
-    env.expect.that_bool(py.config.default["ignore_root_user_error"]).equals(False)
-    env.expect.that_str(py.default_python_version).equals("3.12")
-
-    my_module_toolchain = struct(
-        name = "python_3_12",
-        python_version = "3.12",
-        register_coverage_tool = False,
-    )
-    rules_python_toolchain = struct(
-        name = "python_3_11",
-        python_version = "3.11",
-        register_coverage_tool = False,
-    )
-    env.expect.that_collection(py.toolchains).contains_exactly([
-        rules_python_toolchain,
-        my_module_toolchain,
-    ]).in_order()
-
-_tests.append(_test_default_non_rules_python_ignore_root_user_error_override)
-
 def _test_default_non_rules_python_ignore_root_user_error_non_root_module(env):
     py = parse_modules(
         module_ctx = _mock_mctx(