Remove deprecated schema methods from BaseFilterProtocol (#809)

Author: huynguyengl99

rest_framework-stubs/generics.pyi

@@ -1,4 +1,3 @@
-from _typeshed import Incomplete
 from collections.abc import Sequence
 from typing import Any, Protocol, TypeVar
 
@@ -28,8 +27,6 @@ class BaseFilterProtocol(Protocol[_MT_inv]):
     def filter_queryset(
         self, request: Request, queryset: QuerySet[_MT_inv], view: views.APIView
     ) -> QuerySet[_MT_inv]: ...
-    def get_schema_fields(self, view: views.APIView) -> list[Any]: ...
-    def get_schema_operation_parameters(self, view: views.APIView) -> Incomplete: ...
 
 class GenericAPIView(views.APIView, UsesQuerySet[_MT_co]):
     queryset: QuerySet[_MT_co] | Manager[_MT_co] | None