Remove Python 3.6 branches from typeshed (#8269)

stdlib/re.pyi

@@ -4,15 +4,9 @@ import sys
 from _typeshed import ReadableBuffer
 from collections.abc import Callable, Iterator
 from sre_constants import error as error
-from typing import Any, AnyStr, overload
+from typing import Any, AnyStr, Match as Match, Pattern as Pattern, overload
 from typing_extensions import TypeAlias
 
-# ----- re variables and constants -----
-if sys.version_info >= (3, 7):
-    from typing import Match as Match, Pattern as Pattern
-else:
-    from typing import Match, Pattern
-
 __all__ = [
     "match",
     "fullmatch",
@@ -41,14 +35,15 @@ __all__ = [
     "DOTALL",
     "VERBOSE",
     "UNICODE",
+    "Match",
+    "Pattern",
 ]
 
-if sys.version_info >= (3, 7):
-    __all__ += ["Match", "Pattern"]
-
 if sys.version_info >= (3, 11):
     __all__ += ["NOFLAG", "RegexFlag"]
 
+# ----- re variables and constants -----
+
 class RegexFlag(enum.IntFlag):
     A = sre_compile.SRE_FLAG_ASCII
     ASCII = A
@@ -91,10 +86,6 @@ if sys.version_info >= (3, 11):
     NOFLAG = RegexFlag.NOFLAG
 _FlagsType: TypeAlias = int | RegexFlag
 
-if sys.version_info < (3, 7):
-    # undocumented
-    _pattern_type: type
-
 # Type-wise the compile() overloads are unnecessary, they could also be modeled using
 # unions in the parameter types. However mypy has a bug regarding TypeVar
 # constraints (https://github.com/python/mypy/issues/11880),