Fix comments from review

Author: stefansli

CHANGELOG.md

@@ -14,10 +14,10 @@ and **Merged pull requests**. Critical items to know are:
 The versions coincide with releases on pip. Only major versions will be released as tags on Github.
 
 ## [0.0.x](https://github.com/oras-project/oras-py/tree/main) (0.0.x)
- - use same annotation as oras-go for determining whether to unpack a layer or not (0.2.26)
  - check for blob existence before uploading (0.2.26)
    - fix get_tags for ECR when limit is None, closes issue [173](https://github.com/oras-project/oras-py/issues/173)
    - fix empty token for anon tokens to work, closes issue [167](https://github.com/oras-project/oras-py/issues/167)
+   - use same annotation as oras-go for determining whether to unpack a layer or not [119](https://github.com/oras-project/oras-py/issues/119)
  - retry on 500 (0.2.25)
  - align provider config_path type annotations (0.2.24)
  - add missing prefix property to auth backend (0.2.23)

oras/provider.py

@@ -888,8 +888,6 @@ def pull(
         :type overwrite: bool
         :param outdir: output directory path
         :type outdir: str
-        :param skip_unpack: skip unpacking layers
-        :type skip_unpack: bool
         """
         container = self.get_container(target)
         self.auth.load_configs(
@@ -906,9 +904,6 @@ def pull(
             # A directory will need to be uncompressed and moved
             unpack_layer = annotations.get(oras.defaults.annotation_unpack, False)
 
-            if unpack_layer and skip_unpack:
-                filename += ".tar.gz"
-
             # If we don't have a filename, default to digest. Hopefully does not happen
             if not filename:
                 filename = layer["digest"]
@@ -922,7 +917,7 @@ def pull(
                 )
                 continue
 
-            if unpack_layer and not skip_unpack:
+            if unpack_layer:
                 targz = oras.utils.get_tmpfile(suffix=".tar.gz")
                 self.download_blob(container, layer["digest"], targz)