Remove long-deprecated Request DATA, QUERY_PARAMS properties (#420)

Author: intgr

rest_framework-stubs/request.pyi

@@ -77,11 +77,7 @@ class Request(HttpRequest):
     def successful_authenticator(self) -> BaseAuthentication | ForcedAuthentication | None: ...
     def __getattr__(self, attr: str) -> Any: ...
     @property
-    def DATA(self) -> None: ...
-    @property
     def POST(self) -> _ImmutableQueryDict: ...  # type: ignore[override]
     @property
     def FILES(self): ...
-    @property
-    def QUERY_PARAMS(self) -> None: ...
     def force_plaintext_errors(self, value: Any) -> None: ...