Revert "setuptools: add various missing objects and annotations (python#10639)"

This reverts commit a4f08bd.

Author: AlexWaygood

stubs/setuptools/setuptools/_distutils/ccompiler.pyi

@@ -1,5 +1,5 @@
 from collections.abc import Callable
-from typing import Any, ClassVar
+from typing import Any
 from typing_extensions import TypeAlias
 
 _Macro: TypeAlias = tuple[str] | tuple[str, str | None]
@@ -15,15 +15,6 @@ def new_compiler(
 def show_compilers() -> None: ...
 
 class CCompiler:
-    src_extensions: ClassVar[list[str] | None]
-    obj_extensions: ClassVar[str | None]
-    static_lib_extension: ClassVar[str | None]
-    shared_lib_extension: ClassVar[str | None]
-    static_lib_format: ClassVar[str | None]
-    shared_lib_format: ClassVar[str | None]
-    exe_extension: ClassVar[str | None]
-    language_map: ClassVar[dict[str, str]]
-    language_order: ClassVar[list[str]]
     dry_run: bool
     force: bool
     verbose: bool

stubs/setuptools/setuptools/_distutils/cmd.pyi

@@ -10,7 +10,6 @@ class Command:
     distribution: Distribution
     sub_commands: ClassVar[list[tuple[str, Callable[[Self], bool] | None]]]
     def __init__(self, dist: Distribution) -> None: ...
-    def ensure_finalized(self) -> None: ...
     @abstractmethod
     def initialize_options(self) -> None: ...
     @abstractmethod

stubs/setuptools/setuptools/_distutils/command/build_ext.pyi

@@ -1,7 +1,6 @@
 from _typeshed import Incomplete
 
 from ..cmd import Command
-from ..extension import Extension
 
 class build_ext(Command):
     description: str
@@ -43,5 +42,5 @@ class build_ext(Command):
     def get_ext_fullpath(self, ext_name: str) -> str: ...
     def get_ext_fullname(self, ext_name: str) -> str: ...
     def get_ext_filename(self, ext_name: str) -> str: ...
-    def get_export_symbols(self, ext: Extension) -> list[str]: ...
-    def get_libraries(self, ext: Extension) -> list[str]: ...
+    def get_export_symbols(self, ext): ...
+    def get_libraries(self, ext): ...

stubs/setuptools/setuptools/logging.pyi

@@ -1,2 +1,2 @@
 def configure() -> None: ...
-def set_threshold(level: int) -> int: ...
+def set_threshold(level): ...