chore: Remove unneded _tiff attribute from HasTiffReference (#89)

* chore: Remove unneded `_tiff` reference from HasTiffReference

* lint

Author: kylebarron

src/async_geotiff/_fetch.py

@@ -12,8 +12,8 @@
 if TYPE_CHECKING:
     from collections.abc import Sequence
 
-    from async_tiff import TIFF, ImageFileDirectory
     from async_tiff import Array as AsyncTiffArray
+    from async_tiff import ImageFileDirectory
     from pyproj import CRS
 
 
@@ -30,11 +30,6 @@ def _mask_ifd(self) -> ImageFileDirectory | None:
         """The mask IFD for this image (index, IFD), if any."""
         ...
 
-    @property
-    def _tiff(self) -> TIFF:
-        """A reference to the underlying TIFF object."""
-        ...
-
     @property
     def crs(self) -> CRS:
         """The coordinate reference system."""

src/async_geotiff/_overview.py

@@ -10,13 +10,11 @@
 from async_geotiff._transform import TransformMixin
 
 if TYPE_CHECKING:
-    from async_tiff import TIFF, GeoKeyDirectory, ImageFileDirectory
+    from async_tiff import GeoKeyDirectory, ImageFileDirectory
     from pyproj.crs import CRS
 
     from async_geotiff import GeoTIFF
 
-# ruff: noqa: SLF001
-
 
 @dataclass(init=False, frozen=True, kw_only=True, eq=False, repr=False)
 class Overview(ReadMixin, FetchTileMixin, TransformMixin):
@@ -61,11 +59,6 @@ def _create(
 
         return instance
 
-    @property
-    def _tiff(self) -> TIFF:
-        """A reference to the underlying TIFF object."""
-        return self._geotiff._tiff
-
     @property
     def crs(self) -> CRS:
         """The coordinate reference system of the overview."""