Remove compatibility aliases (#5464)

* Remove compatibility aliases

Remove a few instances of Text

Use aliases from _typeshed

* Remove unused imports

stdlib/http/cookiejar.pyi

@@ -1,6 +1,6 @@
 import sys
+from _typeshed import StrPath
 from http.client import HTTPResponse
-from os import PathLike
 from typing import Dict, Iterable, Iterator, Optional, Sequence, Tuple, TypeVar, Union, overload
 from urllib.request import Request
 
@@ -26,7 +26,7 @@ class FileCookieJar(CookieJar):
     delayload: bool
     if sys.version_info >= (3, 8):
         def __init__(
-            self, filename: Optional[Union[str, PathLike[str]]] = ..., delayload: bool = ..., policy: Optional[CookiePolicy] = ...
+            self, filename: Optional[StrPath] = ..., delayload: bool = ..., policy: Optional[CookiePolicy] = ...
         ) -> None: ...
     else:
         def __init__(

stdlib/http/server.pyi

@@ -1,7 +1,7 @@
 import email.message
 import socketserver
 import sys
-from os import PathLike
+from _typeshed import StrPath
 from typing import Any, ClassVar, Dict, List, Mapping, Optional, Sequence, Tuple, Union
 
 class HTTPServer(socketserver.TCPServer):
@@ -57,7 +57,7 @@ class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
             request: bytes,
             client_address: Tuple[str, int],
             server: socketserver.BaseServer,
-            directory: Optional[Union[str, PathLike[str]]] = ...,
+            directory: Optional[StrPath] = ...,
         ) -> None: ...
     else:
         def __init__(self, request: bytes, client_address: Tuple[str, int], server: socketserver.BaseServer) -> None: ...